Difference between revisions of "Delphinium subsect. Virescens"
Phytologia 78: 85. 1995.
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|genus=Delphinium | |genus=Delphinium | ||
|section=Delphinium sect. Diedropetala | |section=Delphinium sect. Diedropetala | ||
Revision as of 23:06, 27 May 2020
Roots 2-8-branched, fusiform, fascicled, 3-8(-15) cm, ± fleshy; buds minute. Stems 1(-2) per root, usually unbranched, elongation delayed 4-16 weeks after leaf initiation; base not narrowed, firmly attached to root. Leaves basal and cauline, largest near base of stem, others often 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 with 3-8 flowers per 5 cm, ± dense, cylindric; pedicel appressed-ascending, usually less than 2 cm; bracts markedly smaller and fewer lobed than leaves. Fruits erect. Seeds crescent-shaped to obpyramidal, 1.5-2.5 × 0.8-1.8 mm, not ringed, not wing-margined; seed coats with prominent multicellular, transverse, wavy ridges, cells ± brick-shaped, cell margins straight.
Distribution
North America, n Mexico.
Discussion
Species 3 (3 in the flora).
Selected References
Key
| 1 | Sepals white to lavender, reflexed; leaves grayish pubescent with short hairs. | Delphinium wootonii |
| 1 | Sepals white to blue; if lavender, then not reflexed and leaves not grayish pubescent. | > 2 |
| 2 | Plants with combination of midcauline leaf blades round with at least 7 lobes more than 3/10 length of longest lobe; sepals dark to light blue; distalmost petiole immediately below inflorescence at least 1 cm long. | Delphinium madrense |
| 2 | Plants deviating in at least one feature from combination above; sepals purple to blue to white; distalmost petiole immediately below inflorescence less than 0.5(–1) cm long. | Delphinium carolinianum |