Difference between revisions of "Thalictrum minus"
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|special_status={{Treatment/ID/Special_status | |special_status={{Treatment/ID/Special_status | ||
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|name=Thalictrum minus subsp. kemense | |name=Thalictrum minus subsp. kemense | ||
|authority=(Fries) Hultén | |authority=(Fries) Hultén | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Thalictrum minus var. stipellatum | |name=Thalictrum minus var. stipellatum | ||
|authority=(C. A. Meyer) Tamura | |authority=(C. A. Meyer) Tamura | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Ranunculaceae;Thalictrum;Thalictrum sect. Thalictrum;Thalictrum minus | |hierarchy=Ranunculaceae;Thalictrum;Thalictrum sect. Thalictrum;Thalictrum minus | ||
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name=Thalictrum minus | name=Thalictrum minus | ||
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|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_478.xml |
|genus=Thalictrum | |genus=Thalictrum | ||
|section=Thalictrum sect. Thalictrum | |section=Thalictrum sect. Thalictrum | ||
Latest revision as of 22:49, 5 November 2020
Stems erect, nearly cespitose or rhizomatous, 15-150 cm, glabrous or somewhat glandular. Leaves basal, 7-30 cm. Leaf blade 3-4-ternate; leaflets nearly orbiculate or broadly ovate, irregularly 2-3-lobed or margins dentate in distal 1/2, 15-30 mm, surfaces glabrous to glandular. Inflorescences panicles with long branches, many flowered. Flowers: pedicels not recurved in fruit; sepals yellowish green, ovate, 3-4 mm; stamens 10-15; anthers yellowish, 2-3 mm. Achenes 3-15, sessile; body broadly ovoid to narrowly oblong-ovoid, 2.5-4 mm, ± weakly veined.
Phenology: Flowering late spring–summer (Jun–Jul).
Habitat: Steppe meadows, shrub thickets, forest margins, and forest meadows
Elevation: 0-300 m
Distribution
Alaska, Eurasia.
Discussion
Thalictrum minus has been reported from mainland Alaska (E. Hultén 1968); we have been able to confirm its occurrence only in the Aleutian Islands.
Initially pendent, the flowers become erect. The beak is 0.75-1 mm, much shorter than the achene, and not fimbriate.
Selected References
None.