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Stemless tetraneuris

Also known as: Stemless hymenoxys, Stemless goldflower

Tetraneuris acaulis Pursh

[=Hymenoxys acaulis (Pursh) K. F. Parker ]

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Stemless tetraneuris leaf
Stemless tetraneuris
Stemless tetraneuris
Stemless tetraneuris involucral bracts
Stemless tetraneuris
Stemless tetraneuris
Stemless tetraneuris habit
Stemless tetraneuris disk florets
Stemless tetraneuris
Stemless tetraneuris leaves
Stemless tetraneuris disk florets
Stemless tetraneuris
Stemless tetraneuris caudex

Morphology

Stem
Stemless; flowering stalk leafless, silky.
Leaves
All basal, spatulate, .6 to 3.2 inches long, .1 to .33 inches wide, densely silky-hairy, sparsely to moderately gland-dotted; margins entire.
Inflorescence
Heads, solitary, terminal on flowering stalks; our populations only rarely with ray florets.
Flower
Involucre 1/5 to 1/3 inch tall, 1/2 to 3/4 inch across, receptacle hemispheric or conical; involucral bracts erect, thin, separate, silky, 1/6 to 1/4 inch long; outer bracts 6-10; ray florets (when present) 8-14, 1/5 to 1/3 inch long, yellow, turned downward at maturity; disk florets many, fertile, yellow.
Fruit
Achene, top-shaped, weakly angled, coarsely hairy, tipped with 5-7 translucent scales to 1/8 inch long; enclosing small seed.

Ecology

Habitat
Dry, rocky hillsides, limestone bluffs, roadsides; calcareous soils.
Distribution
West 1/2 of Kansas

Practical Information

Uses
Native Americans in the Southwest used a related species to make a stimulant drink or applied a poultice of the plant to hip and back aches.

Additional Notes

Comments

New Latin from Greek akaulos, "without a stem".

Synonyms

Alternative scientific names that have been used for this plant.

Scientific Name: Hymenoxys acaulis

Full Citation: Hymenoxys acaulis K. F. Parker

Quick Facts
Plant Type
Wildflower
Family
Asteraceae - Sunflower Family
Life Span
Perennial
Height
4-12 inches
Origin
Native
Last Updated
2010-03-04
Color Groups
Yellow Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: May, June, July, August