narrowleaf milkweed

Asclepias fascicularis

Member of milkweeds (genus Asclepias)
milkweeds (subfamily Asclepiadoideae)
dogbane family (family Apocynaceae)
dicots (class Magnoliopsida)
other colors in flowering plants

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• hoods open at top
• horns sticking out above hood and gymnostegium
• leaves opposite or whorled generally in 3s to 5s, often with clusters of smaller leaves in axils; petiole short; blade narrow-lanceolate, base tapered
• common, but not west of Skyline Blvd.

Toxicity of indian paint brush, milkweed (Asclepias spp.):
4 – Ingestion of these plants, especially in large amounts, is expected to cause serious effects to the heart, liver, kidneys or brain. If ingested in any amount, call the poison center immediately.

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Chris’s observations: 9 (8 are research grade)

Locations:

• Almaden Quicksilver CP
• Coyote Lake / Harvey Bear Ranch CP
• Dimond Canyon Trail, Oakland
• Ed R. Levin CP
• Edgewood Park & Natural Preserve
• Henry Coe SP
• Mission Peak RP
• Pinnacles NP
• Ulistac Natural Area, Santa Clara

Months:

• Jun.: 5
• Jul.: 3
• Aug.: 0
• Sep.: 0
• Oct.: 1

For more details, use advanced search.

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Not all sites include this taxon:

• Asclepias fascicularis → iNaturalist – Calflora – CalPhotos – Jepson eFlora
• not yet listed → FNA

Bay Area species: iNaturalist – Calflora