Thalictrum mirabile


Bull. Torrey Bot. Club 27: 277. 1900

Conservation concernEndemicSelected by author to be illustrated
Treatment appears in FNA Volume 3.
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Stems weakly erect to reclining, 10-30 cm, glabrous. Leaves basal and cauline; basal petioles 2 cm, distal petioles shorter. Leaf blade: basal usually ternately compound, distal gradually less divided; leaflets nearly orbiculate to orbiculate-reniform, apically 4-7-lobed, 20-30 mm wide, lobe margins crenate, surfaces abaxially glaucescent. Inflorescences panicles, few flowered. Flowers: sepals white, spatulate to rhombic-spatulate, 1.5 mm; filaments white, 2-3 mm; anthers 0.3-0.5 mm. Achenes 3-8, spreading; stipe 2.5-3.5 mm, nearly as long as achene body; body flat, 2.5-4 mm, abaxial margin convex, adaxial margin straight, conspicuously 3-veined on each face; beak minute.

Phenology: Flowering late spring–early summer (Jun).
Habitat: Moist sandstone bluffs, sinks, and rocky crevices
Elevation: 200-1500 m


V3 732-distribution-map.gif

Ala., Ga., Ky., N.C., Tenn.


Of conservation concern.

Thalictrum mirabile is very similar to T. clavatum. Field studies are in progress to clarify the status of this species.



Lower Taxa

No lower taxa listed.

Facts about "Thalictrum mirabile"
AuthorMarilyn M. Park + and Dennis Festerling Jr. +
AuthoritySmall +
BasionymsUndefined sect. Physocarpum +
DistributionAla. +, Ga. +, Ky. +, N.C. + and Tenn. +
Elevation200-1500 m +
HabitatMoist sandstone bluffs, sinks, and rocky crevices +
IllustratorJohn Myers +
PhenologyFlowering late spring–early summer (Jun). +
Publication titleBull. Torrey Bot. Club +
Publication year1900 +
ReferenceNone +
Source xml grained fna xml/V3/V3 732.xml +
Special statusConservation concern +, Endemic + and Selected by author to be illustrated +
SynonymsUndefined sect. Sumnera +
Taxon familyRanunculaceae +
Taxon nameThalictrum mirabile +
Taxon parentThalictrum sect. Physocarpum +
Taxon rankspecies +
VolumeVolume 3 +