Difference between revisions of "Delphinium subsect. Wislizenana"
Madroño 31: 243. 1984.
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|genus=Delphinium | |genus=Delphinium | ||
|section=Delphinium sect. Diedropetala | |section=Delphinium sect. Diedropetala | ||
Latest revision as of 21:45, 5 November 2020
Roots 3-8-branched, (5-)15-24(-80) cm, twisted fibrous, dry to fleshy, thin threadlike segments apparent nearly entire length; buds sometimes more than 3 mm, usually absent during dormant season. Stems 1(-4) per root, usually unbranched, elongation delayed 2-10 weeks after leaf initiation; base usually not narrowed, firmly attached to root; proximal internodes much shorter than those of midstem. Leaves basal and cauline, largest near base of stem, others usually abruptly smaller on distal portion of stem; basal petioles spreading, cauline petioles ascending; basal leaves more rounded and with fewer, wider lobes than cauline leaves. Inflorescences usually 2-9 flowers per 5 cm, open to dense, cylindric-narrow-pyramidal, spurs rarely intersecting rachis; pedicel spreading to ascending, often more than 2 cm, rachis to midpedicel angle more than 30°; bracts usually smaller and fewer lobed than leaves. Fruits erect. Seeds rectangular to crescent-shaped, 2-3.5 × 1.3-2.5 mm, not ringed on proximal end, wing-margined or not; seed coats ± covered with small irregular wavy ridges, cells short (less than 3 times longer than wide), cell margins usually straight.
Distribution
North America, Mexico.
Discussion
Species 12 (5 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Sepals red. | Delphinium cardinale |
| 1 | Sepals bluish or purplish, rarely white, extremely rarely pink, not red. | > 2 |
| 2 | Flowers ± bright blue, sepals with lighter median line adaxially; leaf blade light green, veins obscure; leaf lobe apex gradually tapering to point. | > 3 |
| 2 | Flowers purple to blue (if bright blue, then lower stems glabrous), sepal color ± uniform; leaf blade dark green, at least adaxially, veins prominent; leaf lobe apex abruptly tapered, usually mucronate. | > 4 |
| 3 | Leaf blade sparsely puberulent; stems more than (40–)70 cm. | Delphinium stachydeum |
| 3 | Leaf blade densely puberulent; stems less than 60(–80) cm. | Delphinium geyeri |
| 4 | Midstems and leaf blades pubescent; sepals dark blue to purple. | Delphinium geraniifolium |
| 4 | Midstems and leaf blades glabrous to subglabrous; sepals bright dark blue. | Delphinium scopulorum |