Zigadenus venenosus
Zigadenus venenosus var. gramineus
grass-leaf death-camas, meadow death-camas
grassy death camas
proximal blades 12–50 cm × 2–10 mm.
racemose or paniculate with 1 or 2 basal branches, 10–50-flowered, terminal raceme pyramidal in anthesis, 2–20 × 2–5 cm, branches (if any) 1/10–1/3 length of entire inflorescence, diverging from main axis at 10°–60° when in fruit.
mostly paniculate with 1–2 basal branches, occasionally racemose, 2–15 × 2–5 cm.
perianth hypogynous, campanulate, 5–10 mm diam.;
tepals persistent in fruit, cream colored, 2–5 × 1–3 mm, outer often clawed, apex usually acute;
gland 1, obovate, distal margins evident to obscure, irregular;
filaments straight, usually equaling tepals, occasionally longer, thickened proximally;
pedicel usually ascending in fruit, occasionally perpendicular to stem, 3–25 mm, bracts usually green, sometimes white, 5–25 mm.
outer tepals not clawed, or clawed less than 5 mm.
8–20 × 4–7 mm.
9–20 × 4–7 mm.
= 22.
Zigadenus venenosus
Zigadenus venenosus var. gramineus
Varieties 2 (2 in the flora).
Zigadenus venenosus is a smaller, more slender plant than either Z. paniculatus or Z. fontanus. It can be distinguished from Z. micranthus by its ascending pedicels. It has a much broader distribution than either Z. micranthus or Z. fontanus, and does not occur on serpentine substrates.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety gramineus is most easily distinguished from var. venenosus by its paniculate inflorescence, although some individuals in each population are racemose. It occurs well inland, east of the Cascade and Rocky mountains and at high elevations within those ranges.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Outer tepals usually clawed ca. 5 mm; inflorescences mostly racemose, occasionally paniculate with 1 basal branch. | var. venenosus |
1. Outer tepals not clawed, or clawed less than 5 mm; inflorescences mostly paniculate with 1–2 basal branches, occasionally racemose. | var. gramineus |
BC
PNW Herbaria
Turner Photog.
WildflowerSearch
iNaturalist
USDA Plants Database
OR
