Flora of North America species comparison

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Helenium elegans var. amphibolum
Photo is of parent taxon
Habit Plants 25–70 cm.
Leaves

proximal blades usually irregularly toothed or lobed;

mid and distal leaves usually entire.
Peduncles

3–14 cm.
Involucres

7–11 × 8–12(–13) mm.
Ray florets

13–17;

corollas 6.3–15(–19) × 2.2–5.5(–8.7) mm.
Disc florets

250–500(–700+).
Heads

20–50.
Cypselae

0.7–1 mm;

pappi 0.1–0.3(–0.4) mm.
2n

= 26.

Helenium elegans var. amphibolum
Phenology Flowering (Feb–)Mar–Jun(–Sep).
Habitat Calcareous soils, ditches, washes, along streams
Elevation 300–1900 m (1000–6200 ft)
Distribution
from FNA
TX; Mexico (Coahuila, Nuevo León, San Luis Potosí, Tamaulipas)
Source FNA vol. 21, p. 433.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Helenium > Helenium elegans
Sibling taxa
H. elegans var. elegans
Synonyms H. amphibolum
Name authority (A. Gray) Bierner: Sida 5: 47. (1972)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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