Allium scilloides

Douglas ex S. Watson

Proc. Amer. Acad. Arts 14: 229. 1879.

EndemicConservation concern
Treatment appears in FNA Volume 26. Treatment on page 275. Mentioned on page 233, 276.

Bulbs 1–5, not clustered on stout, primary rhizome, increase bulbs ± equaling parent bulbs, never appearing as basal cluster, rhizomes absent, globose to ovoid, 1–2 cm × 8–20 mm; outer coats enclosing renewal bulbs, reddish or brownish, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white or light-brown, cells absent or obscure and ± quadrate. Leaves deciduous with scape after seeds mature, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 6–15 cm × 2–4 mm, margins entire or obscurely papillose. Scape usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, strongly flattened, 2-edged or winged distally, wings obscurely papillose, 4–8 cm × 1–3 mm. Umbel decisuous with scape, erect, compact, 5–12-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 3-veined, broadly ovate, ± equal, apex acute. Flowers campanulate, 6–8 mm; tepals erect, white or pinkish with green midribs, becoming reddish purple, broadly elliptic-oblong, ± equal, becoming rigid, papery and ± connivent over fruit, margins entire, apex obtuse, not involute at tip; stamens included; anthers purple; pollen white to gray; ovary crestless or obscurely crested; processes 3, central, rounded, margins entire; style linear, equaling stamens; stigma capitate, unlobed or minutely 3-lobed; pedicel 2–10.5 (–18.5 in fruit) mm. Seed-coat dull; cells smooth. 2n = 14.


Phenology: Flowering Mar–Apr.
Habitat: Barren, gravelly soils, arid interior slopes and ridges well back from Columbia River
Elevation: 300–1300 m

Discussion

Of conservation concern.

Allium scilloides is known only from east of the Cascades.

Selected References

None.

Lower Taxa

None.

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

... more about "Allium scilloides"
versatile +  and dorsifixed +
cordate +  and linear +
Obtuse (?) +  and Acute (?) +
Dale W. McNeal Jr. +  and T. D. Jacobsen +
Douglas ex S. Watson +
whorled +, opposite +  and alternate +
dilated +
straight +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
falcate +
2mm;4mm +
conspicuous +
1 +  and 5 +
roughened +  and smooth +
quadrate +
300–1300 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
unisexual +  and bisexual +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
loculicidal +
membranaceous +  and leathery +
Barren, gravelly soils, arid interior slopes and ridges well back from Columbia River +
paired +, paniculate +  and racemose +
light-brown +  and white +
deciduous +
papillose +
brownish +  and reddish +
crested +
many;several +
spreading +  and erect +
0.2 cm2 mm <br />0.002 m <br /> (1.05 cm10.5 mm <br />0.0105 m <br />) +
membranous +
zygomorphic +  and actinomorphic +
Flowering Mar–Apr. +
white +  and gray +
Proc. Amer. Acad. Arts +
1cm +  and 2cm +
globose +  and ovoid +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
2 (?) +  and 3 (?) +
winged +, 2-edged +  and solid +
deciduous +
flattened +
wind-distributed +
obovoid +
Endemic +  and Conservation concern +
adnate +  and free +
1 +  and several +
3-lobed +, unlobed +  and capitate +
Allium scilloides +
species +
reddish purple;pinkish;white +
persisting +
distinct +
elliptic-oblong +
papery +  and rigid +
sepaloid +  and petaloid +
narrower +
5-12-flowered +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
papillose +
1mm;3mm +
9 +, 8 +  and 7 +