Zigadenus paniculatus

(Nuttall) S. Watson

Botany (Fortieth Parallel), 343. 1871.

Common names: Foothill death camas sand-corn
IllustratedEndemic
Basionym: Helonias paniculata Nuttall J. Acad. Nat. Sci. Philadelphia 7: 57. 1834
Synonyms: Toxicoscordion paniculatum (Nuttall) Rydberg
Treatment appears in FNA Volume 26. Treatment on page 85. Mentioned on page 83, 84.

Plants 2–7 dm, from bulbs; bulbs not clumped, tunicate, ovoid, 18–40 × 12–35 mm. Leaves: proximal blades 15–35 cm × 3–15 mm. Inflorescences paniculate, 10–80-flowered, narrow, terminal raceme pyramidal in anthesis, 2–30 × 2–4 cm, proximal branches usually less than 6 cm, 1/10–1/2 length of entire inflorescence, diverging from main axis at 10°–60° when in fruit. Flowers: perianth hypogynous, campanulate, 5–10 mm diam.; tepals persistent in fruit, cream colored, ovate, 2–5 × 1–4 mm, outer usually not clawed, apex usually acute; gland 1, obovate, distal margins evident to obscure, irregular; filaments straight, usually equaling tepals, occasionally longer, thickened proximally; pedicel ascending to perpendicular to stem in fruit, 3–25 mm, bracts green, lanceolate, 5–15 mm. Capsules 5–20 × 3–8 mm. 2n = 22.


Phenology: Flowering Apr–Jun.
Habitat: Sagebrush desert, dry open inland grasslands
Elevation: 1300–2600 m

Distribution

V26 81-distribution-map.jpg

Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"broad" is not a number."thicker" is not a number.

... more about "Zigadenus paniculatus"
introrse +, extrorse +  and transverse +
reniform +
Fayla C. Schwartz +
(Nuttall) S. Watson +
whorled +, opposite +  and alternate +
dilated +
Helonias paniculata +
reticulate-veined +  and parallel-veined +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
membranous +
not clumped +
18mm +  and 40mm +
1.2 cm12 mm <br />0.012 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Foothill death camas +  and sand-corn +
Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1300–2600 m +
connate-coroniform +  and dilated +
staminate +  and pedicellate +
protandrous +  and bisexual +
loculicidal +  and septicidal +
membranaceous +  and leathery +
obovate +
Sagebrush desert, dry open inland grasslands +
persistent +
many;several +
ascending +  and perpendicular +
0.3 cm3 mm <br />0.003 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
cream colored +  and greenish or red tinged +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
campanulate +
Flowering Apr–Jun. +
tapering +
15 cm150 mm <br />0.15 m <br /> (35 cm350 mm <br />0.35 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1/10 length of entire inflorescence;1/2 length of entire inflorescence +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Botany (Fortieth Parallel), +
contractile +
ellipsoid +
wind-distributed +
2 +  and 20 +
flattened +  and elongate +
W1 +, Illustrated +  and Endemic +
adnate +  and free +
staminodial +
rudimentary +
barely larger +
Toxicoscordion paniculatum +
Zigadenus paniculatus +
Zigadenus +
species +
cream colored +
persistent +
1mm;4mm +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
sepaloid +  and petaloid +
narrower +
rhizomatous +, bulbous +  and subscapose +
3 +  and 2 +
26 +, 11 +  and 8 +