Erythronium montanum

S. Watson

Proc. Amer. Acad. Arts 26: 130. 1891.

Common names: Avalanche-lily
IllustratedEndemic
Treatment appears in FNA Volume 26. Treatment on page 157. Mentioned on page 156, 158.

Bulbs narrowly ovoid, 25–60 mm. Leaves 10–20 cm; blade green, ovate to broadly lanceolate, base ± abruptly narrowed to petiole, margins wavy. Scape 12–35 cm. Inflorescences 1–3-flowered. Flowers: tepals white to creamy white with bright-yellow zone at base, broadly ovate to broadly lanceolate, 25–45 mm, inner wider than outer, auriculate at base, length less than 4 times width; stamens 12–24 mm; filaments white, linear, slender, less than 0.8 mm wide; anthers bright-yellow; style white, 13–25 mm; stigma with slender, usually recurved lobes 1–5 mm. Capsules oblong, 3–6 cm. 2n = 24.


Phenology: Flowering summer, usually soon after snowmelt (Jun–Aug).
Habitat: Montane and subalpine meadows, open coniferous forests
Elevation: (300–)800–2000 m

Discussion

This species occurs in the Coast Ranges of southern British Columbia, and disjunctly to southern Vancouver Island, the Olympic Peninsula, and Cascade Mountains from Mount Rainier National Park in Washington to central Oregon.

Selected References

None.

Lower Taxa

None.

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

... more about "Erythronium montanum"
bright-yellow +
versatile +  and dorsifixed +
cordate +  and linear +
loculicidal +
umbilicate +, truncate +  and rounded +
Geraldine A. Allen +  and Kenneth R. Robertson +
S. Watson +
whorled +, opposite +  and alternate +
narrowed +
reticulate-veined +  and parallel-veined +
glabrous +  and glaucous +
ovate +  and broadly lanceolate +
6 cm60 mm <br />0.06 m <br /> (60 cm600 mm <br />0.6 m <br />) +
sheathing +  and involucrate +
1;several +
tunicate +  and scaly +
additional +
2.5 cm25 mm <br />0.025 m <br /> (6 cm60 mm <br />0.06 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Avalanche-lily +
B.C. +, Oreg. +  and Wash. +
(300–)800–2000 m +
connate-coroniform +  and dilated +
0mm +  and 0.8mm +
sessile +  and pedicellate +
erect +  and nodding +
unisexual +  and bisexual +
indehiscent +, septicidal +  and loculicidal +
obovoid +  and oblong +
membranaceous +  and leathery +
Montane and subalpine meadows, open coniferous forests +
persistent +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
slender +
many;several +
zygomorphic +  and actinomorphic +
Flowering summer, usually soon after snowmelt (Jun–Aug). +
Proc. Amer. Acad. Arts +
reddish +  and green +
elongating +
12 cm120 mm <br />0.12 m <br /> (35 cm350 mm <br />0.35 m <br />) +
wind-distributed +
1 +  and many +
Illustrated +  and Endemic +
many +  and few +
more sparingly without than those extensive vegetative reproduction +
adnate +  and free +
staminodial +
1.2 cm12 mm <br />0.012 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
1 +  and several +
3-lobed +  and unlobed +
1.3 cm13 mm <br />0.013 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Erythronium montanum +
Erythronium +
species +
white;creamy white +
distinct +
spreading +  and reflexed +
broadly ovate +  and broadly lanceolate +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
sepaloid +  and petaloid +
narrower +
lanceolate;ovate +
3 +  and 2 +
bright-yellow +