Toxicoscordion venenosum(synonym of Zigadenus venenosus) |
Toxicoscordion micranthum(synonym of Zigadenus micranthus) |
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meadow death camas, poison camas |
small-flowered zigadenus |
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Habit | Plants 20–70 cm tall. | Plants 10–70 cm tall. |
Bulbs | not clumped, tunicate, widely ovate, 10–30 × 8–20 mm; outer layer brown. |
not clumped; ovoid, 10–25(35) × 8–30 mm; outer layer dark brown to black. |
Stems | glabrous. |
scabrous on lower part. |
Leaves | 12–50 cm × 2–10 mm. |
10–45 cm × 2–10 mm. |
Inflorescences | generally racemes, occasionally panicles, 10–50-flowered, 2–20 × 2–5 cm; branches less than 33% length of entire inflorescence; at 10–60° from main axis when fruiting; bracts 5–25 mm long, white to green; pedicels 3–25 mm. |
narrow panicles, occasionally racemes, 10–60-flowered, 3–40 × 3–7 cm; proximal branches less than 50% the length of inflorescence, spreading at 60–90° from main axis in fruit; bracts 5–40 mm long, green to membranous white; pedicels 12–40 mm. |
Flowers | bisexual, campanulate 5–10 mm in diameter; tepals ovate to obtuse, 2–6 × 1–3 mm; outer and inner tepals clawed, persistent in fruit; gland greenish yellow. |
bisexual, 5–12 mm in diameter; tepals ovate to elliptic, 3–8 × 1–5 mm; outer and inner tepals clawed, persistent in fruit; gland yellow. |
Fruits | cylindrical 8–14 × 4–5 mm. |
cylindrical, 6–18 × 2–7 mm. |
2n | =22. |
=22. |
Toxicoscordion venenosum |
Toxicoscordion micranthum |
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Distribution | ||
Discussion | Moist meadows to dry rocky hillsides. Flowering Apr–Jul. 0–2600m. All ecoregions except Est. CA, ID, NV, WA; north to British Columbia, east to UT. Native. |
Dry slopes, flats. Flowering Mar–Jun. 50–1600m. CR, Sisk. CA. Native. |
Source | Flora of Oregon, volume 1, page 314 Tamra Prior |
Flora of Oregon, volume 1, page 313 Tamra Prior |
Sibling taxa | ||
Synonyms | Toxicoscordion venenosum var. gramineum, Zigadenus venenosus, Toxicoscordion venenosum var. venenosum, Zigadenus venenosus var. gramineus, Zigadenus venenosus var. venenosus, Zygadenus venenosus, Zygadenus venenosus var. venenosus | Zigadenus micranthus, Zigadenus micranthus var. micranthus |
Web links |