Difference between revisions of "Jeffersonia diphylla"
Syn. Pl. 1: 418. 1805.
Common names: Twinleaf rheumatism-root
EndemicSelected by author to be illustrated
Basionym: Podophyllum diphyllum Linnaeus
Treatment appears in FNA Volume 3.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Leaves:</b> petiole slender, erect, 9-25 cm at anthesis, maturing to 18-43 cm. <b>Leaf</b> blade 2-foliolate, often with minute apiculation between leaflets; leaflets 1.2-4 × 0.6-2.5 cm at anthesis, maturing to 6-13 × 3-7 cm, lobes rounded to acute. <b>Scapes</b> 9-33 cm, frequently taller than petioles at anthesis. <b>Flowers</b>: sepals elliptic to obovate, 7-15 × 4-6 mm; petals white, elliptic to obovate, 11-22 × 9-12 mm; stamens 6-12 mm; filaments 2-3 mm; anthers 4-9 × 1-1.5 mm; ovaries 6-11 × 3-7 mm. <b>Fruits</b> 18-38 × 8-17 mm, leathery, opening transversely, apical quarter resembling lid, becoming reflexed. <b>Seeds</b> oblong, 4-7 × 2 mm; aril laciniate, attached at adaxial side of hilum. <b>2n</b> = 12.</span><!-- |
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|publication year=1805 | |publication year=1805 | ||
|special status=Endemic;Selected by author to be illustrated | |special status=Endemic;Selected by author to be illustrated | ||
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|genus=Jeffersonia | |genus=Jeffersonia | ||
|species=Jeffersonia diphylla | |species=Jeffersonia diphylla | ||
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-->[[Category:Treatment]][[Category:Jeffersonia]] | -->[[Category:Treatment]][[Category:Jeffersonia]] | ||
Revision as of 13:29, 27 July 2019
Leaves: petiole slender, erect, 9-25 cm at anthesis, maturing to 18-43 cm. Leaf blade 2-foliolate, often with minute apiculation between leaflets; leaflets 1.2-4 × 0.6-2.5 cm at anthesis, maturing to 6-13 × 3-7 cm, lobes rounded to acute. Scapes 9-33 cm, frequently taller than petioles at anthesis. Flowers: sepals elliptic to obovate, 7-15 × 4-6 mm; petals white, elliptic to obovate, 11-22 × 9-12 mm; stamens 6-12 mm; filaments 2-3 mm; anthers 4-9 × 1-1.5 mm; ovaries 6-11 × 3-7 mm. Fruits 18-38 × 8-17 mm, leathery, opening transversely, apical quarter resembling lid, becoming reflexed. Seeds oblong, 4-7 × 2 mm; aril laciniate, attached at adaxial side of hilum. 2n = 12.
Phenology: Flowering early spring; fruiting spring.
Habitat: Rich moist woods to semiopen rocky slopes and outcrops, usually over limestone or other calcareous rocks
Elevation: 100-800 m
Distribution
Ont., Ala., Ga., Ill., Ind., Iowa, Ky., Md., Mich., Minn., N.Y., N.C., Ohio, Pa., Tenn., Va., W.Va., Wis.
Discussion
Plants of Jeffersonia diphylla were used medicinally by Native Americans for treatment of dropsy, gravel and urinary ailments, and for gall and diarrhea, and in poultices for sores and ulcers (D. E. Moermann 1986).
Selected References
None.
Lower Taxa
None.