Biology:Pentachaeta exilis
| Pentachaeta exilis | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Pentachaeta |
| Species: | P. exilis
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| Binomial name | |
| Pentachaeta exilis A.Gray
| |
| Synonyms | |
|
Chaetopappa exilis | |
Pentachaeta exilis is a species of flowering plant in the family Asteraceae known by the common name meager pygmydaisy. It is endemic to California , where it is known from the North Coast Ranges to the southern Central Valley, San Joaquin Valley, and Sierra Nevada foothills. It is a member of grassland and woodland plant communities.
Description
Pentachaeta exilis is an annual herb with a hairy stem no more than about 6 centimeters tall. The narrow linear leaves are up to 3 centimeters long but only about a millimeter wide. The inflorescence is a solitary flower head, with up to 23 heads per plant. The two subspecies of the plant have different types of heads. Most incidences[spelling?] of the plant are ssp. exilis, which has long reddish disc florets in its head but only rudimentary ray florets. The rare subspecies aeolica, which is known from just a few occurrences in the Central Coast Ranges, generally produces some white ray florets around a center of yellow disc florets.
External links
- Calflora Database: Pentachaeta exilis (Meager pygmydaisy, Slender pentachaeta)
- Jepson Manual eFlora treatment of Pentachaeta exilis
- USDA Plants Profile for Pentachaeta exilis
- UC CalPhotos gallery of Pentachaeta exilis ssp. aeolica
- UC CalPhotos gallery of Pentachaeta exilis ssp. exilis
Wikidata ☰ Q7164933 entry
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