Stenanthium occidentale

A. Gray

Proc. Amer. Acad. Arts 8: 405. 1873.

Common names: Bronze-bells mountain-bells
Endemic
Synonyms: Stenanthella occidentalis (A. Gray) Rydberg Stenanthium rhombipetalum Suksdorf
Treatment appears in FNA Volume 26. Treatment on page 89. Mentioned on page 88.

Bulbs ovoid, 2–4 cm. Stems 1.5–4.5 (–6) dm. Leaves several, mostly proximal; blade linear to oblanceolate, weakly keeled, 15–30 × 0.6–2.5 cm, apex acute. Inflorescences racemose and 3–6-flowered or paniculate and to 25-flowered; bracts lanceolate, 6–10 mm. Flowers drooping; perianth narrowly tubular-campanulate; tepals recurved distally, greenish to brownish purple, oblong-lanceolate, 10–20 mm, apex gradually acuminate; tepal glands present; stamens 7–8 mm; filaments subequal; pedicel ascending to erect, 1–3 cm. Capsules lanceoloid, 12–16 mm including slender style beaks, apex gradually acuminate. Seeds brownish black, narrowly oblong, 3–4 mm. 2n = 16.


Phenology: Flowering late spring–mid summer.
Habitat: Wet cliffs, rocky crevices, montane meadows, mossy scree
Elevation: 0–2500 m

Distribution

V26 91-distribution-map.jpg

Alta., B.C., Calif., Idaho, Mont., Oreg., Wash.

Discussion

Stenanthium occidentale is similar to a circum-northern Pacific and Sakhalin Island endemic, S. sachalinense F. Schmidt, which may be conspecific (S. M. Kupchan et al. 1961; F. H. Utech 1987).

Selected References

None.

Lower Taxa

None.

"thicker" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Stenanthium occidentale"
obcordate-reniform +
acuminate +  and acute +
Frederick H. Utech +
A. Gray +
whorled +, opposite +  and alternate +
dilated +
Veratrum subg. Stenanthium +
reticulate-veined +  and parallel-veined +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
keeled +, linear +  and oblanceolate +
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
sheathing +  and involucrate +
lanceolate +
reduced +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lanceoloid +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Bronze-bells +  and mountain-bells +
Alta. +, B.C. +, Calif. +, Idaho +, Mont. +, Oreg. +  and Wash. +
0–2500 m +
lanceolate +
sessile +  and pedicellate +
unisexual +  and bisexual +
loculicidal +  and septicidal +
3-lobed +
membranous +
Wet cliffs, rocky crevices, montane meadows, mossy scree +
25-flowered +  and 3-6-flowered +
paniculate +  and racemose +
persistent +
downward +  and arching +
reduced +
superior +  and half-inferior +
many;several +
ascending +  and erect +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
zygomorphic +  and actinomorphic +
tubular-campanulate +
Flowering late spring–mid summer. +
Proc. Amer. Acad. Arts +
wind-distributed +
brownish black +
3 +  and 4 +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
connate +  and distinct +
staminodial +
subequal +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 +  and several +
persistent +
distinct +
spreading +  and recurved +
Stenanthella occidentalis +  and Stenanthium rhombipetalum +
Stenanthium occidentale +
Stenanthium +
species +
greenish;brownish purple +
persistent +
connate +  and distinct +
oblong-lanceolate +
subequal +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sepaloid +  and petaloid +
narrower +
caulescent +  and scapose +
3 +  and 2 +