|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: Asclepias||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Asclepias asperula (Decne.) Woodson subsp. asperula
Habit: Perennial herb, +- hairy. Stem: decumbent to ascending. Leaf: alternate to subwhorled in 3s; petiole short; blade generally linear-lanceolate. Inflorescence: terminal; peduncle generally 3--10 cm. Flower: corolla spreading to ascending, green-white; hoods not elevated above corolla base, +- reflexed to spreading at base, at +- same level as anther head, dark purple; horns included in hoods. Fruit: erect on +- reflexed pedicels. Seed: 6--8 mm.
Ecology: Dry, open, rocky places; Elevation: 1500--2000 m. Bioregional Distribution: DMoj; Distribution Outside California: southwestern United States, Mexico. Flowering Time: Mar--Sep
Synonyms: Asclepias capricornu Woodson subsp. occidentalis Woodson
Unabridged Note: Asclepias asperula subsp. capricornu (Woodson) Woodson [Asclepias asperula var. decumbens (Nutt.) Shinners] has a more eastern distribution (Kansas, Oklahoma, Texas), leaves generally wide-lanceolate, peduncles generally 0--3 cm, and hoods generally cream-green.
eFlora Treatment Author: Thomas J. Rosatti & Carol A. Hoffman
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Asclepias albicans
Next taxon: Asclepias californica
Citation for this treatment: Thomas J. Rosatti & Carol A. Hoffman 2016. Asclepias asperula subsp. asperula, Revision 1, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=49306, accessed on May 26, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 26, 2016.