Pectis imberbis

Pectis imberbis

Vulnerable  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Pectis
Species: P. imberbis
Binomial name
Pectis imberbis
A. Gray

Pectis imberbis is a species of flowering plant in the aster family, Asteraceae. It is native to Chihuahua and Sonora in Mexico and Arizona in the United States.[1][2] It is known by the common names beardless chinchweed, beardless fetid-marigold, hierba de venado,[1] and tall chinchweed.[2]

This species is a perennial herb growing erect up to 1.2 meters tall from a woody caudex. The linear leaves are up to 5 centimeters long and only 1 or 2 millimeters wide. Flower heads are borne singly or in loose arrays. Each flower head has a cylindrical body lined with glandular phyllaries. It contains 5 yellow ray florets with a few disc florets at the center.[2] The florets may turn reddish or purple with age.[1] Flowering occurs after summer rainfall in August through October.[1]

This plant grows in many kinds of habitat, including woodland, grassland, and dry shrubland.[2] It can generally thrive in disturbed habitat,[1] but overgrazing may eliminate populations.[2]

References

  1. 1 2 3 4 5 Pectis imberbis. Plant Abstracts. Arizona Game and Fish Department.
  2. 1 2 3 4 5 Pectis imberbis. Flora of North America.
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