Delphinium xantholeucum |
Delphinium glaucum |
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yellow-white larkspur |
pale larkspur |
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Habit | Rather stout perennial from a thick, branching, fibrous root, the single stem 3-8 dm. tall, glabrous below but glandular at least in the inflorescence. | Stout, glabrous and glaucous perennial from thick rhizomes, the several simple, hollow stems 10-20 dm. tall. |
Leaves | Leaves few, glabrous and glaucous, mostly on the lower 1/5 of the stem; leaf blades 2-7 cm. broad, 3-4 times dissected, the ultimate segments linear, 1-2 mm. broad. |
Leaves numerous, gradually reduced upward, all divided over half their length into five broad, wedge-shaped segments, these sharply 2-3 times toothed; the blades of the lower leaves may be 15-20 cm. broad. |
Flowers | Inflorescence compound, the main raceme as long as the rest of the stem, loosely many-flowered; pedicels elongate, spreading; sepals 5, creamy-white to greenish-white, green-tipped, the lateral pair oblong, about 10 mm. long; spur 12-15 mm. long; petals 4, small, creamy-yellow; stamens numerous; pistils 3. |
Inflorescence a simple or compound raceme, rather elongate and loosely many-flowered; sepals 5, deep blue-purple, oblong-elliptic, 6-12 mm. long, the spur straight, shorter than the blade of the upper sepal; petals 4, small, pale blue; stamens numerous; pistils 3. |
Fruits | Follicles 15-22 mm. long, erect, glabrous to glandular-pubescent. |
Follicles erect, 10-14 mm. long, glabrous. |
Delphinium xantholeucum |
Delphinium glaucum |
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Flowering time | April-June | July-September |
Habitat | Dry, grassy hillsides and ponderosa pine forests. | Meadows and wet thickets, bogs, streambanks, and coniferous forest openings at middle elevations in the mountains. |
Distribution | Occurring east of the Cascades crest in Washington, where endemic to Okanogan, Chelan, and Douglas counties.
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Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and the Canadian Great Plains.
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Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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