Zigadenus nuttallii

A. Gray ex S. Watson

Botany (Fortieth Parallel), 343. 1871.

Common names: Nuttall’s death camas
Endemic
Synonyms: Toxicoscordion nuttallii (A. Gray ex S. Watson) Rydberg Toxicoscordion texense Rydberg Zigadenus texensis (Rydberg) J. F. Macbride
Treatment appears in FNA Volume 26. Treatment on page 86. Mentioned on page 83.

Plants 3–7.5 dm, from bulbs; bulbs not clumped, tunicate, ovoid, 15–40 × 9–35 mm. Leaves: proximal blades 15–45 cm × 3–15 mm. Inflorescences usually paniculate, 20–60-flowered, with 1–8 branches, narrow, terminal raceme pyramidal in early anthesis, 3–30 × 3–7 cm, proximal branches 1/10–1/2 length of entire inflorescence, ascending at 10°–60° angle. Flowers: perianth hypogynous, campanulate, 10–15 mm diam.; tepals persistent in fruit, cream colored, ovate, 3–8 × 1–4 mm, outer unclawed or rarely clawed to 5 mm, apex usually obtuse; gland 1, obovate, distal margins obscure, thin; filaments straight, usually equaling tepals, occasionally longer, thickened proximally; pedicel usually ascending in fruit, occasionally perpendicular to stem, 10–35 mm, bracts green, somewhat falcate, 3–20 mm. Capsules 8–16 × 3–8 mm. 2n = 32.


Phenology: Flowering Mar–Jun.
Habitat: Tallgrass prairie, calcareous glades, rocky hillsides
Elevation: 500–1200 m

Distribution

V26 85-distribution-map.jpg

Ark., Kans., Mo., Okla., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Zigadenus nuttallii"
Fayla C. Schwartz +
(A. Gray) S. Watson +
Amianthium nuttallii +
Nuttall’s death camas +
Ark. +, Kans. +, Mo. +, Okla. +  and Tex. +
500–1200 m +
Tallgrass prairie, calcareous glades, rocky hillsides +
Flowering Mar–Jun. +
Botany (Fortieth Parallel), +
W2 +  and Endemic +
Toxicoscordion nuttallii +, Toxicoscordion texense +  and Zigadenus texensis +
Zigadenus nuttallii +
Zigadenus +
species +