Difference between revisions of "Allium douglasii"

Hooker

Fl. Bor.-Amer. 2: 184, plate 197. 1838.

Synonyms: Allium hendersonii B. L. Robinson & Seaton
Treatment appears in FNA Volume 26. Treatment on page 267. Mentioned on page 232.
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V26/V26_500.xml
 
|genus=Allium
 
|genus=Allium
 
|species=Allium douglasii
 
|species=Allium douglasii

Revision as of 20:50, 16 December 2019

Bulbs 1–4, not clustered on stout, primary rhizomes, ovoid, 1.2–3 × 1–2 cm; outer coats enclosing 1 or more bulbs, light brown, membranous, lacking cellular reticulation, or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white, sometimes pink, cells obscure, quadrate or linear. Leaves usually persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 9–28 cm × (2–)5–15 mm, margins entire. Scape persistent, solitary, erect, solid, terete, not expanded proximal to inflorescence, (10–)20–30(–40) cm × 1–4 mm. Umbel persistent, erect, compact, 25–50-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, 3, 4–6-veined, ovate, ± equal, apex acute. Flowers ± stellate, (6–)7–8(–10) mm; tepals spreading, light pink to purple with prominent green midribs, narrowly lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate; stamens equaling tepals or exserted; anthers blue-gray; pollen white to light gray; ovary crested; processes 6, 2 per lobe, low, rounded, margins entire; style exserted, linear; stigma capitate, unlobed; pedicel 15–30 mm. Seed coat shining; cells smooth. 2n = 14.


Phenology: Flowering May–Jul.
Habitat: Winter-wet, shallow soils on rock outcrops
Elevation: 400–1300 m

Discussion

Selected References

None.

Lower Taxa

None.