Difference between revisions of "Delphinium newtonianum"
Rhodora 41: 196. 1939.
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|elevation=500-700 m | |elevation=500-700 m | ||
|distribution=Ark. | |distribution=Ark. | ||
| − | |discussion=<p>No cases of hybridization are known. Delphinium newtonianum often occurs in mixed populations with D. tricorne. It normally does not begin flowering until 4-6 weeks after D. tricorne has finished.</p> | + | |discussion=<p>No cases of hybridization are known. <i>Delphinium newtonianum</i> often occurs in mixed populations with <i>D. tricorne</i>. It normally does not begin flowering until 4-6 weeks after <i>D. tricorne</i> has finished.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1939 | |publication year=1939 | ||
|special status=Endemic;Selected by author to be illustrated | |special status=Endemic;Selected by author to be illustrated | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V3/V3_807.xml |
|genus=Delphinium | |genus=Delphinium | ||
|section=Delphinium sect. Diedropetala | |section=Delphinium sect. Diedropetala | ||
Revision as of 18:20, 18 September 2019
Stems 40-90 cm; base often reddish, puberulent. Leaves mostly cauline; basal leaves usually absent at anthesis; cauline leaves 2-8 at anthesis; petiole 0.5-10 cm. Leaf blade round to pentagonal, 4-7 × 5-15 cm, nearly glabrous; ultimate lobes 3-7, width 8-20 mm (basal), 5-15 mm (cauline), widest at middle or in proximal 1/2. Inflorescences 8-20(-40)-flowered, as wide as long or nearly so; pedicel 1-4(-6) cm, pubescent; bracteoles 6-15 mm from flowers, green, linear, 1.5-5 mm, puberulent. Flowers: sepals dark to light blue, rarely white, glabrous, lateral sepals spreading, 12-14 × 6-7 mm, spurs straight to decurved, within 30° of horizontal, 10-15 mm; lower petal blades slightly elevated, ± exposing stamens, 4-5 mm, clefts 2-3 mm; hairs mostly centered near base of cleft, yellow. Fruits 8-12 mm, 3-3.5 times longer than wide, nearly glabrous. Seeds unwinged; surface of each seed coat cell with swollen, blunt, hairlike structures, barely visible at 20×, otherwise smooth.
Phenology: Flowering early summer.
Habitat: Slopes in deciduous forest
Elevation: 500-700 m
Discussion
No cases of hybridization are known. Delphinium newtonianum often occurs in mixed populations with D. tricorne. It normally does not begin flowering until 4-6 weeks after D. tricorne has finished.
Selected References
None.