Grindelia oxylepis

Greene

Pittonia 4: 42. 1899.

Treatment appears in FNA Volume 20. Treatment on page 428. Mentioned on page 426.

Annuals (biennials), 20–55 cm. Stems erect, stramineous, glabrous. Cauline leaf-blades obovate or oblong to spatulate, (5–) 10–15 (–30) mm, lengths 2–2.5 (–5) times widths, bases ± clasping, margins crenate (teeth usually 7–9, sometimes 3–6, per cm, rounded to blunt, usually resin-tipped), apices obtuse to acute, faces glabrous, moderately gland-dotted. Heads in open, paniculiform arrays or borne singly. Involucres broadly urceolate, 7–10 × 8–16 mm. Phyllaries in 4–5 series, reflexed to spreading, ± lanceolate, apices recurved to nearly straight, subulate to acuminate, moderately to strongly resinous. Ray-florets 20–30; laminae 7–9 mm. Cypselae brown, 1.5–3 mm, apices smooth or coronate, faces rugose; pappi of 2–3 straight, smooth or barbellulate (distally dilated), setiform awns 4–6 mm, shorter than or nearly equaling disc corollas. 2n = 12 (Mexico).


Phenology: Flowering (Apr–)Jun–Sep.
Habitat: Moist places, plains, valleys, fields
Elevation: 800–1600 m

Distribution

V20-983-distribution-map.gif

Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (San Luis Potosí), Mexico (Zacatecas)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Grindelia oxylepis"
not tailed +, rounded +  and obtuse +
resinous +
straight +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
John L. Strother +  and Mark A. Wetter +
Greene +
barbellulate +  and smooth +
straight +
2 +  and 3 +
setiform +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
decurrent +
compound +  and simple +
rugulose +  and muricate +
barbellulate +  and barbellate +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
oblong;spatulate +
spatulate +  and triangular lanceolate or linear +
yellow +  and orange +
beaked +, 2-ribbed +  and 5-ribbed +
3-4-angled +, compressed +, ellipsoid +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Durango) +, Mexico (San Luis Potosí) +  and Mexico (Zacatecas) +
800–1600 m +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist places, plains, valleys, fields +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
spreading;erect +
deltate +
usually serrate +  and dentate +
2-carpellate +
barbellulate +  and barbellate +
contorted to curled +  and straight +
Flowering (Apr–)Jun–Sep. +
obscurely +  and 1-nerved +
reflexed +  and spreading +
lanceolate +
subequal +  and unequal +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
subulate +
exalbuminous +
branched +  and simple +
1 (?) +  and 6 (?) +
resinous +
stramineous +
lanceolate +  and more or less deltate +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Grindelia oxylepis +
Grindelia +
species +
ampliate +
20 cm200 mm <br />0.2 m <br /> (55 cm550 mm <br />0.55 m <br />) +