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Jeffersonia diphylla (L.) Pers.
TWINLEAF
Twin leaf; Ground squirrel pea; Helmet pod; Rheumatism root; Yellow root

Life   Plantae   Dicotyledoneae   Berberidaceae   Jeffersonia

Jeffersonia diphylla, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 6
Jeffersonia diphylla, whole plant - in flower - general view

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Jeffersonia diphylla, Twinleaf, fruit
© John Pickering, 2004-2017 · 5
Jeffersonia diphylla, Twinleaf, fruit
Jeffersonia diphylla, fruit - juvenile
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, fruit - juvenile

Jeffersonia diphylla, whole plant - in fruit
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, whole plant - in fruit
Jeffersonia diphylla, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, leaf - basal or on lower stem

Jeffersonia diphylla, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, stem - showing leaf bases
Jeffersonia diphylla, whole plant - in fruit
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, whole plant - in fruit

Jeffersonia diphylla, inflorescence - frontal view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, inflorescence - frontal view of flower
Jeffersonia diphylla, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, inflorescence - lateral view of flower

Jeffersonia diphylla, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Jeffersonia diphylla, stem - showing leaf bases
Jeffersonia diphylla, pollen
© Copyright UDEL Pollen 2014 · 4
Jeffersonia diphylla, pollen

Jeffersonia diphylla, Twinleaf, leave
© John Pickering, 2004-2017 · 4
Jeffersonia diphylla, Twinleaf, leave
Jeffersonia diphylla, Twin-leaf
© Copyright Sheryl Pollock 2011 · 3
Jeffersonia diphylla, Twin-leaf

Jeffersonia diphylla, Twinleaf, leaf base underside
© John Pickering, 2004-2017 · 3
Jeffersonia diphylla, Twinleaf, leaf base underside
Jeffersonia diphylla, Twinleaf, leaf tip upperside
© John Pickering, 2004-2017 · 2
Jeffersonia diphylla, Twinleaf, leaf tip upperside

Associates · map
FamilyScientific name @ source (records)
Davidiellaceae  Cladosporium herbarum @ BPI (3)
Turritellidae  Vermicularia dematium @ BPI (2)

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=JEDI ---> https://plants.usda.gov/java/profile?symbol=JEDI
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://plants.usda.gov/java/profile?symbol=JEDI

Following modified from Flora of North America
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FNA | Family List | FNA Vol. 3 | Berberidaceae | Jeffersonia

1. Jeffersonia diphylla (Linnaeus) Persoon, Syn. Pl. 1: 418. 1805.

Twinleaf, rheumatism-root

Podophyllum diphyllum Linnaeus, Sp. Pl. 1: 505. 1753

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. 2 n = 12.

Flowering early spring; fruiting spring. Rich moist woods to semiopen rocky slopes and outcrops, usually over limestone or other calcareous rocks; 100-800 m; Ont.; Ala., Ga., Ill., Ind., Iowa, Ky., Md., Mich., Minn., N.Y., N.C., Ohio, Pa., Tenn., Va., W.Va., Wis.

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).

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Jeffersonia+diphylla+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Jeffersonia+diphylla+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Jeffersonia+diphylla+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Updated: 2018-01-20 10:27:51 gmt
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