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Xanthisma spinulosum var. gooddingii
(A. Nelson) D.R. Morgan & R.L. Hartman
Family:
Asteraceae
Goodding's tansyaster
[
Haplopappus gooddingii
(A. Nels.) Munz & Johnston,
more
Haplopappus spinulosus var. gooddingii
(A. Nels.) Blake,
Machaeranthera pinnatifida ssp. gooddingii
(A. Nels.) B.L. Turner & Hartman,
Machaeranthera pinnatifida var. gooddingii
,
Sideranthus gooddingii
A. Nels.
]
Flora of North America
Resources
Ronald L. Hartman in Flora of North America (vol. 20)
Subshrubs,
70-100 cm, often woody in proximal
1
/ 3 +.
Stems
erect to spreading, branched in distal
2
/ 3 ; mid internodes 5-20+ mm.
Leaves
relatively sparse, crowded proximally, widely spreading, little reduced distally, margins pinnatifid to 2-pinnatifid, lobes often linear, 3-15+ mm, mostly entire, faces glabrous or sparsely hairy, stipitate-glandular.
Heads
mostly borne singly.
Peduncles
2-15+ cm, bracteate.
Involucres
15-25 mm wide.
2
n
= 8, 16. Flowering winter-spring. Rocky to sandy washes, slopes, and roadsides; 200-1700 m; Ariz., Calif., Nev.; Mexico (Baja California, Sonora).
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