Flora of North America species comparison

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Viguiera stenoloba

resinbush, skeletonleaf goldeneye
Habit Shrubs, 50–150 cm.
Leaves

opposite or alternate;

sessile or subsessile;

blades ovate (and shallowly to deeply lobed, lobes 3–9, ± linear) or linear, 1.5–10.8 × 1–9 cm, ultimate margins entire (revolute), faces: abaxial loosely to densely strigillose (canescent) and gland-dotted, adaxial densely strigose to glabrate.
Peduncles

2–5 cm.
Involucres

5–12 × 7–9 mm.
Ray florets

13–18;

tubes 0.9–1.1 mm, laminae 7–12 mm.
Disc florets

100+;

corollas 3.3–4.2 mm.
Phyllaries

abruptly narrowed to acuminate or spatulate (phyllary bases broad, indurate, apices herbaceous).
Heads

usually borne singly.
Cypselae

2–3 mm, glabrous;

pappi 0.
Paleae

(oblong-rectangular) 4–5 mm, apices abruptly acuminate.
2n

= 34, 68.

Viguiera stenoloba
Phenology Flowering May–Sep.
Habitat Tamaulipan and Chihuahuan Desert scrub
Elevation 800–1900 m (2600–6200 ft)
Distribution
from FNA
NM; TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas)
[WildflowerSearch map]
[BONAP county map]
Discussion

Viguiera stenoloba is a dominant shrub in some places in the trans-Pecos region of Texas. M. L. Butterwick (1975) suggested that the species is separable into two varieties; those have never received formal taxonomic recognition.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 174.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Helianthinae > Viguiera
Sibling taxa
V. cordifolia, V. dentata
Synonyms Heliomeris tenuifolia
Name authority S. F. Blake: Contr. Gray Herb. 54: 97. (1918)
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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