Machaeranthera tanacetifolia is a species of flowering plant in the family Asteraceae known by the common names tansyleaf tansyaster and Tahoka daisy.
| Machaeranthera tanacetifolia | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Machaeranthera |
| Species: | M. tanacetifolia
|
| Binomial name | |
| Machaeranthera tanacetifolia | |
| Synonyms | |
|
Machaeranthera coronopifolia | |
Description edit
M. tanacetifolia is an annual or biennial herb growing one or more branching stems up to about 10–40 centimetres (4–15+1⁄2 inches) in height.[1] The multilobed leaves are up to 5–12.5 cm (2–5 in) long.[1] Between May and September,[1] an inflorescence bears one or more flower heads lined with spreading or curling, pointed phyllaries. The head has a center of many yellow disc florets and a fringe of many lavender to purple ray florets each 1 to 2 cm (1⁄3 to 2⁄3 in) long. The fruit is a flat achene about 1 cm long including the pappus.
It is similar to M. parviflora, the flower heads of which are smaller.[1]
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Plant before flowering -
Close-up of foliage -
Underside of flower -
Flower gone to seed
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Distribution and habitat edit
It is native to Alberta, the southwestern and central United States, and northern Mexico. It grows in several types of habitat, including sandy open plains and deserts.[1]
Uses edit
The Zuni people use an infusion of the flowers taken with other flowers for unspecified illnesses.[2]
References edit
- ^ a b c d e Spellenberg, Richard (2001) [1979]. National Audubon Society Field Guide to North American Wildflowers: Western Region (rev ed.). Knopf. pp. 386–387. ISBN 978-0-375-40233-3.
- ^ Camazine, Scott and Robert A. Bye 1980 A Study Of The Medical Ethnobotany Of The Zuni Indians of New Mexico. Journal of Ethnopharmacology 2:365-388 (p. 375)