|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|Family: Apocynaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Perennial herb, erect, semi-woody. Leaf: alternate to subwhorled. Inflorescence: +- terminal, compound cyme. Flower: corolla salverform; filaments free, attached near top of corolla tube, unappendaged, anthers free from each other and stigma, pollen +- free; nectary 0 or a shallow ring around ovaries; style +- thread-like, stigma skirted at base. Seed: glabrous.
Species In Genus: 5--25 species: North America, Japan. Etymology: (John Amson, Virginia physician, 18th century)
eFlora Treatment Author: Thomas J. Rosatti & Lauramay T. Dempster
Jepson Online Interchange
Previous taxon: Apocynaceae
Next taxon: Amsonia tomentosa
Citation for this treatment: Thomas J. Rosatti & Lauramay T. Dempster 2016. Amsonia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10238, accessed on July 29, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 29, 2016.