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AGAVE AND YUCCA | CACTI | WILDFLOWERS

Packera Neomexicana, New Mexico Groundsel


Plants > Wildflowers > Asteraceae > Packera Neomexicana
New Mexico Groundsel; Yellow flowerheads of packera neomexicana, at Cochise Stronghold, Arizona
Yellow flowerheads of packera neomexicana, at Cochise Stronghold, Arizona
Common name:
New mexico groundsel
Family:
Aster (Asteraceae)
Scientific name:
Packera neomexicana
Main flower color:
Yellow
Range:
Arizona, New Mexico and west Texas
Height:
Between 8 and 20 inches
Habitat:
Chaparral, meadows, oak and conifer woodland; up to 10,000 feet
Leaves:
Basal leaves are lanceolate to ovate, up to 2.5 inches long, on stalks, with toothed edges and a covering of cobwebby hairs
Season:
April to July
Pintrest
Packera neomexicana is a relatively low-growing species, less than 2 feet tall, producing between one and five stems, closely spaced, which have leaves mostly around the base. Stems are often purplish near the ground, green higher up, and they have a thin covering of tomentose hairs. Basal leaves grow on stalks (petioles) which may also be purplish, and hairy. The base of the leaf blades taper gradually to the stalk. Leaf margins may be almost entire, but more usually have teeth, coarse or fine. Stem leaves are much smaller, alternately arranged, and few in number. The uppermost leaves are sessile, and have entire edges.

The inflorescence is a cluster of between 3 and 20 flowerheads, which have 5 to 14 yellow ray florets (usually at least 8), 40 to more than 60 yellow disc florets, and a cup-shaped involucre lined by 13 or 21 green phyllaries. These are of equal length, and may be hairless, or lightly tomentose hairy.

There are three varieties: var mutabilis is mostly or completely hairless and has narrow basal leaves, while the other two are hairy and have wider basal leaves - they are var neomexicana, which has regular stem leaves, and the uncommon var toumeyi, which has small, bract-like stem leaves.




Basal leaves
Basal leaves
New Mexico Groundsel
Woolly hairy stem
Flowers and buds
Flowers and buds
Dark green leaves
Dark green leaves
Buds
Buds
Stalked leaves
Stalked leaves
Hairless flowerhead
Hairless flowerhead
Clustered flowerheads
Clustered flowerheads
Cobwebby hairs
Cobwebby hairs
Phyllaries and florets
Phyllaries and florets
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