Displaying 1 - 75 out of 88 Object(s)

Taxon Collector Date Country State/Province Locality Type Status Barcode Notice
Tridax mexicana A.M.Powell A. M. Powell 757 18 Aug 1961 Mexico Guerrero Acapulco, east side of city isotype Tridax mexicana A.M.Powell
Perityle turneri A.M.Powell A. M. Powell 1858 02 Apr 1970 Mexico Chihuahua 3.4 miles east of El… isotype Perityle turneri A.M.Powell
Quercus hinckleyi C.H.Müll. A. M. Powell 2800 01 Nov 1974 United States of America Texas Presidio Co. Ca. 50 yards… Quercus hinckleyi C.H.Müll.
Flaveria brownii A.M.Powell A. M. Powell 2802 30 Dec 1974 United States of America Texas San Patricio Co. Port Aransas,… isotype Flaveria brownii A.M.Powell
Penstemon ambiguus Torr. A. M. Powell 2848 10 Jun 1976 United States of America Texas Hudspeth Co. White gypsum dunes,… Penstemon ambiguus Torr.
Selinocarpus gypsophilus B.A.Fowler A. M. Powell 2105 25 May 1971 Mexico Chihuahua Ca. 15 miles southwest of… isotype Selinocarpus gypsophilus B.A.Fowler
Perityle warnockii A.M.Powell A. M. Powell 1311 11 Oct 1964 United States of America Texas Val Verde Co. Ca. 40-50… isotype Perityle warnockii A.M.Powell
Perityle fosteri A.M.Powell A. M. Powell 3365 03 Jul 1978 United States of America Texas Culberson Co. Apache Mts., Panther… isotype Perityle fosteri A.M.Powell
Flaveria anomala B.L.Rob. A. M. Powell 2568 20 Aug 1973 Mexico San Luis Potosí Matehuala Mun. 1 mi N… Flaveria anomala B.L.Rob.
Layia glandulosa (Hook.) Hook. & Arn. A. M. Powell 1806 26 Mar 1970 Mexico Baja California About 10 mi NE of… Layia glandulosa (Hook.) Hook. & Arn.
Flaveria oppositifolia (DC.) Rydb. A. M. Powell 2710 21 May 1974 Mexico Coahuila 3 mi NW of Nadadores Flaveria oppositifolia (DC.) Rydb.
Dalea formosa Torr. A. M. Powell 3070 25 Mar 1977 United States of America Texas Val Verde Co. Langtry. Dalea formosa Torr.
Dalea formosa Torr. A. M. Powell 3071 25 Mar 1977 United States of America Texas Terrell Co. hills 3 mi… Dalea formosa Torr.
Dalea formosa Torr. A. M. Powell 3067 21 Mar 1977 United States of America Texas Terrell Co. 12 mi E… Dalea formosa Torr.
Dalea formosa Torr. A. M. Powell 1561 10 Apr 1968 United States of America Texas Hudspeth Co. ca 5 mi… Dalea formosa Torr.
Dalea formosa Torr. A. M. Powell 3076 02 Apr 1977 United States of America Texas Brewster Co. ca 9 mi… Dalea formosa Torr.
Dalea frutescens A.Gray A. M. Powell 2454 12 Sep 1972 United States of America Texas Brewster Co. ca 13 mi… Dalea frutescens A.Gray
Calycoseris wrightii A.Gray A. M. Powell 1761 24 March 1970 Mexico Baja California 18 miles S of Bahia… Calycoseris wrightii A.Gray
Heuchera wellsiae R.A.Folk A. M. Powell 1860 02 Apr 1970 Mexico Durango 3.4 miles E of El… holotype Heuchera wellsiae R.A.Folk
Perityle rupestris (A.Gray) Shinners A. M. Powell 1555 23 Sep 1967 United States of America Texas Brewster Co. rock bluffs, above… Perityle rupestris (A.Gray) Shinners
Perityle rupestris (A.Gray) Shinners A. M. Powell 1228 06 Jun 1964 United States of America Texas Jeff Davis Co. ca. 2… Perityle rupestris (A.Gray) Shinners
Perityle rupestris (A.Gray) Shinners A. M. Powell 1559 30 Sep 1967 United States of America Texas Jeff Davis Co. bluffs, 15… Perityle rupestris (A.Gray) Shinners
Perityle staurophylla (Barneby) Shinners A. M. Powell 1276 28 Aug 1964 United States of America New Mexico Otero Co. ca 1.5 mi.… Perityle staurophylla (Barneby) Shinners
Perityle tenella (M.E.Jones) J.F.Macbr. A. M. Powell 1267 31 Jul 1964 United States of America Utah Washington Co. ca. 1/2 to… Perityle tenella (M.E.Jones) J.F.Macbr.
Nerisyrenia linearifolia (S.Watson) Greene A. M. Powell 2354 14 Jun 1972 United States of America Texas Ward Co. ca 6 mi… Nerisyrenia linearifolia (S.Watson) Greene
Draba cuneifolia Nutt. var. cuneifolia A. M. Powell 1312 21 Jan 1965 United States of America Texas Presidio Co. Near spring in… Draba cuneifolia Nutt. var. cuneifolia
Draba cuneifolia Nutt. A. M. Powell 6506 29 Mar 2005 United States of America Texas Brewster Co. ca 9 mi… Draba cuneifolia Nutt.
Calylophus A. M. Powell 2359 14 Jun 1972 United States of America Texas Ward Co. ca 6 mi… Calylophus
Tiquilia hispidissima (Torr. & A.Gray) A.T.Richardson A. M. Powell 2355 14 Jun 1972 United States of America Texas Ward Co. ca 6 mi… Tiquilia hispidissima (Torr. & A.Gray) A.T.Richardson
Gaura A. M. Powell 2360 14 Jun 1972 United States of America Texas Ward Co. ca 6 mi… Gaura
Abronia angustifolia Greene A. M. Powell 2846 10 Jun 1976 United States of America Texas Hudspeth Co. White gypsum dunes,… Abronia angustifolia Greene
Mirabilis multiflora (Torr.) A.Gray A. M. Powell 3004 12 Jul 1976 United States of America Texas El Paso Co. south end… Mirabilis multiflora (Torr.) A.Gray
Asclepias subverticillata (A.Gray) Vail A. M. Powell 3002 12 Jul 1976 United States of America Texas El Paso Co. south end… Asclepias subverticillata (A.Gray) Vail
Mentzelia humilis (A.Gray) J.Darl. A. M. Powell 2132 23 Jun 1971 United States of America Texas Culberson Co. gyp hills 35… Mentzelia humilis (A.Gray) J.Darl.
Mentzelia mexicana H.J.Thomps. & Zavort. A. M. Powell 3026 16 Aug 1976 United States of America Texas Brewster Co. roadcut in the… Mentzelia mexicana H.J.Thomps. & Zavort.
Trianthema portulacastrum L. A. M. Powell 6001 12 Aug 1993 United States of America Texas Presidio Co. Roadside in drainage,… Trianthema portulacastrum L.
Batesimalva violacea (Rose) Fryxell A. M. Powell 3632 19 Sep 1981 United States of America Texas Brewster Co. Big Bend Nat'l… Batesimalva violacea (Rose) Fryxell
Opuntia macrocentra Engelm. A. M. Powell 6022 04 Feb 1994 United States of America Texas Presidio Co. Trans-Pecos, ca. 30… Opuntia macrocentra Engelm.
Sphaeralcea A. M. Powell 2353 14 Jun 1972 United States of America Texas Ward Co. low gypsum ridges… Sphaeralcea
Amsonia longiflora Torr. A. M. Powell 2931 23 Jun 1976 United States of America Texas Hudspeth Co. Mayfield Canyon, S… Amsonia longiflora Torr.
Flaveria Juss. A. M. Powell 2611 22 Aug 1973 Mexico Coahuila 39 miles N of San… Flaveria Juss.
Forestiera pubescens Nutt. A. M. Powell 2851 11 Jun 1976 United States of America Texas Hudspeth Co. saline-gypsum flats, near… Forestiera pubescens Nutt.
Quercus pungens Liebm. A. M. Powell 5772 12 Oct 1991 United States of America Texas Hudspeth Co. Eagle Mountains, WNW… Quercus pungens Liebm.
Melampodium hispidum Kunth A. M. Powell 1546 19 Aug 1967 United States of America Texas Jeff Davis Co. along creek… Melampodium hispidum Kunth
Flaveria chlorifolia A.Gray A. M. Powell 2799 27 Oct 1974 United States of America Texas Reeves Co. Beside a concrete… Flaveria chlorifolia A.Gray
Eysenhardtia texana Scheele A. M. Powell 3007 01 Aug 1976 United States of America Texas Val Verde Co. hillsides, ca.… Eysenhardtia texana Scheele
Agropyron Gaertn. A. M. Powell 5871 23 Jul 1992 United States of America New Mexico Otero Co. Near Cloudcroft. Agropyron Gaertn.
Flaveria oppositifolia (DC.) Rydb. A. M. Powell 2551 20 Aug 1973 Mexico Coahuila Arteaga Mun. Low places at… Flaveria oppositifolia (DC.) Rydb.
Perityle lemmonii (A.Gray) A.M.Powell A. M. Powell 1695 02 Apr 1969 United States of America Arizona Pima Co. Just NW of… Perityle lemmonii (A.Gray) A.M.Powell
Brongniartia minutifolia S.Watson A. M. Powell 3631 29 Aug 1981 United States of America Texas Brewster Co. low white hills,… Brongniartia minutifolia S.Watson
Senegalia roemeriana (Scheele) Britton & Rose A. M. Powell 3750 09 Jul 1982 United States of America Texas Brewster Co. limestone hills W… Senegalia roemeriana (Scheele) Britton & Rose
Pomaria jamesii (Torr. & A.Gray) Walp. A. M. Powell 2849 10 Jun 1976 United States of America Texas Hudspeth Co. white gypsum dunes,… Pomaria jamesii (Torr. & A.Gray) Walp.
Amelanchier denticulata (Kunth) K.Koch A. M. Powell 2810 07 Jun 1975 United States of America Texas Presidio Co. Along the Right… Amelanchier denticulata (Kunth) K.Koch
Flaveria brownii A.M.Powell A. M. Powell 2802 30 Dec 1974 United States of America Texas San Patricio Co. Port Aransas,… Flaveria brownii A.M.Powell
Flaveria chlorifolia A.Gray A. M. Powell 3036 18 Sep 1976 United States of America Texas Culberson Co. Rustler Springs at… Flaveria chlorifolia A.Gray
Flaveria trinervia (Spreng.) C.Mohr A. M. Powell 3037 04 Sep 1976 United States of America Texas Culberson Co. Rustler Springs at… Flaveria trinervia (Spreng.) C.Mohr
Haploësthes greggii A.Gray var. greggii A. M. Powell 2787 19 Jul 1974 United States of America Texas Crosby Co. Near roadside, just… Haploësthes greggii A.Gray var. greggii
Haploesthes greggii var. texana (J.M.Coult.) I.M.Johnst. A. M. Powell 2777 24 Jun 1974 United States of America Texas Crane Co. Gypseous Flat, on… Haploesthes greggii var. texana (J.M.Coult.) I.M.Johnst.
Hymenoxys linearifolia Hook. A. M. Powell 1872 16 Apr 1970 United States of America Texas Ward Co. 2 miles W… Hymenoxys linearifolia Hook.
Isocoma veneta (Kunth) Greene A. M. Powell 2788 24 Aug 1974 United States of America Texas Culberson Co. roadside, Hwy 54,… Isocoma veneta (Kunth) Greene
Poliomintha incana (Torr.) A.Gray A. M. Powell 2844 10 Jun 1976 United States of America Texas Hudspeth Co. White gypsum dunes,… Poliomintha incana (Torr.) A.Gray
Perityle congesta (M.E.Jones) Shinners A. M. Powell 1264 31 Jul 1964 United States of America Arizona Coconino Co. In crevices of… Perityle congesta (M.E.Jones) Shinners
Perityle gracilis (M.E.Jones) Rydb. A. M. Powell 1272 03 Aug 1964 United States of America Nevada Lincoln Co. Meadow Valley wash… Perityle gracilis (M.E.Jones) Rydb.
Perityle inyoensis (Ferris) A.M.Powell A. M. Powell 1275 04 Aug 1964 United States of America California Inyo Co. In northeast-facing crevices… Perityle inyoensis (Ferris) A.M.Powell
Perityle lemmonii (A.Gray) A.M.Powell A. M. Powell 1255 14 Jul 1964 United States of America Texas Brewster Co. 4 mi W… Perityle lemmonii (A.Gray) A.M.Powell
Perityle lindheimeri var. halimifolia (A.Gray) A.M.Powell A. M. Powell 1234 20 Jun 1964 United States of America Texas Val Verde Co. along creek… Perityle lindheimeri var. halimifolia (A.Gray) A.M.Powell
Perityle lindheimeri (A.Gray) Shinners var. lindheimeri A. M. Powell 1235 20 Jun 1964 United States of America Texas Kendall Co. Edge Falls near… Perityle lindheimeri (A.Gray) Shinners var. lindheimeri
Perityle lindheimeri (A.Gray) Shinners var. lindheimeri A. M. Powell 1326 19 Jun 1965 United States of America Texas Real Co. 13 miles west… Perityle lindheimeri (A.Gray) Shinners var. lindheimeri
Perityle megalocephala var. oligophylla A.M.Powell A. M. Powell 1612 28 May 1968 United States of America California Inyo Co. Rock bluffs, W.… Perityle megalocephala var. oligophylla A.M.Powell
Perityle megalocephala var. megalocephala A. M. Powell 1274 03 Aug 1964 United States of America Nevada Nye Co. ca. 16 mles… Perityle megalocephala var. megalocephala
Perityle parryi A.Gray A. M. Powell 1396 20 Mar 1966 United States of America Texas Presidio Co. road cut along… Perityle parryi A.Gray
Flaveria anomala B.L.Rob. A. M. Powell 2559 20 Aug 1973 Mexico Nuevo León Galeana Mun. 7.5 mi S… Flaveria anomala B.L.Rob.
Flaveria anomala B.L.Rob. A. M. Powell 2579 21 Aug 1973 Mexico San Luis Potosí Matehuala Mun. 28 mi S… Flaveria anomala B.L.Rob.
Ambrosia ambrosioides (Cav.) Payne A. M. Powell 1838 29 Mar 1970 Mexico Baja California Sur 11 mi W Loreto and… Ambrosia ambrosioides (Cav.) Payne
Haploesthes robusta I.M.Johnst. A. M. Powell 2619 23 Aug 1973 Mexico Coahuila Ca. 3-4 mi SW of… Haploesthes robusta I.M.Johnst.