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Amphiachyris dracunculoides
(DC.) Nutt.
Explore 1 NEON Biorepository occurrences
Family:
Asteraceae
prairie broomweed
[
Brachyris dracunculoides
DC.,
more
Gutierrezia dracunculoides
(DC.) Blake,
Xanthocephalum amoenum var. intermedium
Shinners,
Xanthocephalum dracunculoides
(DC.) Shinners
]
rewilding
FNA
Gleason & Cronquist
Resources
Guy L. Nesom in Flora of North America (vol. 20)
Plants
30-100(-200) cm.
Primary stems
0.3-1(-2) mm diam.
Leaf blades
narrowly to broadly lanceolate, 5-60 × 0.5-6 mm.
Heads
in crowded corymbiform arrays.
Phyllaries
2-3 × 1-2 mm.
Receptacles
deeply pitted, glabrous.
Cypselae
1.2-2.2 mm, 7-9-ribbed, short-setulose.
2
n
= 10 (rarely 8). Flowering Jul-Nov. Calcareous, clay, or sandy soils, disturbed habitats; 0-500 m; Ala., Ark., Ill., Ind., Iowa, Kans., Ky., La., Miss., Mo., Nebr., N.Mex., Okla., Ohio, Pa., S.C., Tenn., Va.
Amphiachyris dracunculoides
is common in the south-central states, often in relatively large populations.
Vascular plants of NE US and adjacent Canada
Annual, 3-8 dm, simple below, bushy- branched above; lvs numerous, linear, finely glandular-punctate, to 6 cm נ3 mm; heads numerous, campanulate or hemispheric; invol 3-6 mm; rays 6-10, 3-5 mm; achenes multinerved, villous-puberulent; 2n=8, 10. Dry soil on plains and prairies; Mo. and Kans. to Tex. and N.M.; Tenn.; Ala.; intr. in Ky. July- Oct. (Gutierrezia d.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
©The New York Botanical Garden. All rights reserved. Used by permission.
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