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AGAVE AND YUCCA | CACTI | WILDFLOWERS

Erigeron Mancus, Imperfect Fleabane


Plants > Wildflowers > Asteraceae > Erigeron Mancus
Imperfect Fleabane; Yellow/orange flowerhead of erigeron mancus, Manns Peak Trail, La Sal Mountains, Utah
Yellow/orange flowerhead of erigeron mancus, Manns Peak Trail, La Sal Mountains, Utah
Common names:
Imperfect fleabane, depauperate fleabane
Family:
Aster (Asteraceae)
Scientific name:
Erigeron mancus
Main flower color:
Yellow
Range:
Southeast Utah
Height:
Between 1 and 3 inches
Habitat:
Meadows, forest openings, rocky slopes and ridges; 10,000 to 12,500 feet
Leaves:
Spatulate to linear; those at the base are pinnately lobed, and up to 1.5 inches long
Season:
July to August
Pintrest
Erigeron mancus is a rare species, found only in the La Sal Mountains of southeast Utah, where it inhabits exposed, rocky places above the treeline. Plants are easy to identify as the flowerheads lack ray florets, instead only containing several dozen disc florets, which are initially colored yellow, becoming orange then purplish as they mature and wither. The corollas of the disc florets are less than 0.2 inches long. The involucre is surrounded by up to five rows of linear phyllaries, sparsely covered by short hairs. The lower phyllaries are often angled outwards. Phyllaries are initially green, becoming purplish later in the season.

Flowerheads form singly at the top of the short stems. Leaves grow at the base and the lower part of the stems; the former are pinnately divided into short, linear lobes with rounded tips, while the latter are mostly linear, and unlobed. The lobes of the basal leaves may be folded up along the axis. Leaves and stems are usually hairless.




Green-purple phyllaries
Green-purple phyllaries
Imperfect Fleabane
Lobed leaves
Yellow and orange flowerheads
Yellow and orange flowerheads
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