Saturday, February 13, 2016

Asclepias fascicularis (Narrow-leaved Milkweed)

 7/24/11 Vista Grande Trail, Santa Rosa Plateau Ecological Reserve,
Murrieta, SW Riverside County, CA

7/24/11 Vista Grande Trail - SRP


COMMON NAME: Narrow-leaved Milkweed

SPECIES: Asclepias fascicularis

FAMILY: Apocynaceae (Dogbane Family)


LOCATION: Vista Grande Trail, Santa Rosa Plateau Ecological Reserve, Murrieta, SW Riverside County, CA


Treatment from The Jepson Manual (1993):

Perennial, generally glabrous

Stem ascending to erect

Leaves in whorl of 3–5, often with axillary clusters of small leaves, persistent; petiole short; blade narrowly lanceolate, base tapered

Flower: corolla reflexed, greenish white, sometimes tinged purple; hoods elevated above corolla base, generally < anther head, greenish white; horns generally > hoods (and anther head)

Fruit: pedicel erect

Ecology: Dry ground, valleys, foothills

Elevation: 50–2200 m.  

Bioregional distribution: California (except North Coast, Central Coast, South Coast) 

Distribution outside California: to Washington, Utah, Baja California

Flowering time: Jun–Sep

Horticultural information: DRN, DRY, SUN: 3, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.

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