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.
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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 +