Asclepias subverticillata (A.Gray) Vail

• Region

  North America

• Country

  United States of America

• State/Province

  Arizona

• County/Municipio

  Cochise Co.

• Locality

  San Pedro Riparian National Conservation Area, Upper San Pedro River floodplain, near Hunter wash, ~3 miles north of Hereford Rd, 200m east of San Pedro

• Elevation

  Alt. 1250 m. (4101 ft.)

• Coordinates

  31.4795, -110.116

• Location Notes

  [US & Canada]

• Distribution

  Map all specimens of this taxon

Plants of Arizona
ARIZONA STATE UNIVERSITY
Asclepias subverticillata (Gray) Vail
Family. Asclepiadaceae
Arizona, Cochise County; San Pedro Riparian National Conservation
Area,
Upper San Pedro River floodplain, near Hunter wash, ~3 miles north
of Hereford Rd, 200m east of San Pedro, N 31° 28.769' , W 110°
6.945' 4100 ft.,
Habitat: Riparian, abandoned stream channel.
Associated spp: Sporobolus wrightii, dead Populus fremontii,
Hoffmannseggia glauca, young Prosopis velutina, Ambrosia
psilostachya, Xanthocephalum gymnospermoides.
Notes: Rhizomatous perennial 85 cm, crowns and homs white, corolla
pale green, herbage with milky sap, occasional
Collected by: Elizabeth Makings 1047 18 June 2002
03528899