- Family:
- Lamiaceae Martinov
Physostegia Benth.

[LKGF]
Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.
- Morphology General Habit
- Rhizomatous perennial herbs, glabrous or subglabrous below inflorescence, hairs simple
- Morphology Leaves
- Leaves mostly sessile, often amplexicaul, the lowest sometimes petiolate
- Morphology Reproductive morphology Inflorescences
- Inflorescence racemoid, flowers subsessile
- Morphology Reproductive morphology Inflorescences Bracteoles
- Bracteoles absent
- Morphology Reproductive morphology Flowers Calyx
- Calyx actinomorphic, somewhat inflated in fruit, 5-lobed, lobes equal
- Morphology Reproductive morphology Flowers Corolla
- Corolla strongly 2-lipped, 4-lobed (1/3), white to reddish violet, posterior lip flat to slightly hooded, usually entire or emarginate, tube exannulate
- Morphology Reproductive morphology Flowers Androecium Stamens
- Stamens equal or anterior pair longer, filaments villous, thecae parallel, not confluent, suture bordered with 1-6 (-10) small teeth
- Morphology Reproductive morphology Flowers Disc
- Disc with abaxial lobe equal to twice as long as ovary
- Morphology Reproductive morphology Flowers Gynoecium Stigma
- Stigma-lobes equal to subequal
- Morphology Reproductive morphology Fruits
- Nutlets trigonous, glabrous, smooth or rarely verrucate.
- Note
- 2n = 38, 76. Twelve species. With a base number of 19, Physostegia is probably of amphiploid origin from parents with n = 9 and 10 (Cantino 1985b). One parent may be Warnockia (n = 10), the genus with the closest phenetic relationship to Physostegia (Ca
- Distribution
- Northern Canada to northern Mexico.
[LKGF]
- Use
- Physostegia virginiana (L.) Benth. is widely grown as an ornamental and sometimes naturalised elsewhere.
Native to:
Alabama, Alberta, Arkansas, British Columbia, Connecticut, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Labrador, Louisiana, Maine, Manitoba, Maryland, Mexico Northeast, Mexico Northwest, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Mexico, New York, Newfoundland, North Carolina, North Dakota, Northwest Territorie, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Yukon
Introduced into:
Great Britain
- Physostegia angustifolia Fernald
- Physostegia correllii (Lundell) Shinners
- Physostegia digitalis Small
- Physostegia godfreyi P.D.Cantino
- Physostegia intermedia (Nutt.) Engelm. & A.Gray
- Physostegia ledinghamii (B.Boivin) P.D.Cantino
- Physostegia leptophylla Small
- Physostegia longisepala P.D.Cantino
- Physostegia parviflora Nutt. ex A.Gray
- Physostegia pulchella Lundell
- Physostegia purpurea (Walter) S.F.Blake
- Physostegia virginiana (L.) Benth.
Physostegia Benth. appears in other Kew resources:
First published in Edwards's Bot. Reg. 15: t. 1289 (1829)
Accepted by
- Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
Literature
Lamiaceae Key Genus Fact Sheets
- Cantino, Contr. Gray Herb. 211: 1-105 (1982).
- Harley RM, Atkins S, Budantsev AL, Cantino PD, Conn BJ, Grayer R, Harley MM, de Kok RPJ, Krestovskaja T, Morales R, Paton AJ, Ryding O, and Upson T. 2004. Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Sp
- Physostegia Benth., Edward's Bot. Reg. 15: sub t. 1289 (1829)
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Science Photographs
Copyright applied to individual images
-
Lamiaceae Key Genus Fact Sheets
Nina Davies, Gemma Bramley and Don Kirkup, Royal Botanic Gardens, Kew
http://creativecommons.org/licenses/by/3.0