Iva caudata Small

  • Authority

    Bulletin of the New York Botanical Garden.

  • Family

    Asteraceae

  • Scientific Name

    Iva caudata Small

  • Description

    Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /home/emu/nybgweb/www-dev/htdocs/science-dev/wp-content/themes/nybgscience/lib/VHMonographsDetails.php on line 179

    Species Description - Annual, hispid or somewhat strigose. Stems erect, 4-10 dm. tall, branching, ridged: leaves opposite or nearly so; blades ovate or elliptic, 4-10 cm. long, coarsely and irregularly serrate or incised, acuminate, acute to truncate at the base: petioles 1/4 - 1/5 as long as the blades, bristly: spikes continuous or interrupted below, conspicuously bracted: bracts linear or with a narrowly elliptic base and linear tip, 7-15 mm. long, sparingly ciliate: heads drooping, sessile: bracts of the involucres cuneate, 3 mm. high, ciliolate: corollas 2 mm. long; segments spreading or recurved.

  • Discussion

    A characteristic species apparently confined to the Gulf States in the vicinity of the Mississippi River. It may be distinguished from Iva ciliata by the smoother foliage, the thinner leaf-blades and the conspicuously elongated linear bracts of the inflorescence. The following specimens are in the Columbia University Herbarium

    Louisiana: Swamps, September, Wm. Carfenter ; New Orleans, 1835, Dr. Ingalls ; 1838, Dr. Riddell.

    Mississippi : Specimen in the Chapman Herbarium without further record.

  • Distribution

    In swamps and low ground, Mississippi to Louisiana. Fall.

    Mississippi United States of America North America| Louisiana United States of America North America|