Grindelia howellii

Steyermark

Ann. Missouri Bot. Gard. 21: 549, fig. 30. 1934.

EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 431. Mentioned on page 425, 427.

Perennials, (25–) 60–90+ cm. Stems erect, stramineous to redbrown, stipitate-glandular (at least distally). Cauline leaf-blades spatulate or oblong to oblanceolate or lanceolate, 25–60 (–90) mm, lengths 3–5 (–7) times widths, bases cuneate to ± clasping, margins entire or serrate to denticulate (teeth apiculate), apices obtuse to acute, faces usually finely stipitate-glandular, sometimes glabrous (or scabridulous near margins) and gland-dotted. Heads in open to crowded, corymbiform to paniculiform arrays. Involucres broadly urceolate to globose, 8–15 × 12–20 (–30) mm. Phyllaries in 6–9 series, spreading to appressed, linear or linear-attenuate to lance-linear, apices mostly looped to hooked (inner sometimes recurved to straight), ± terete, moderately to strongly resinous. Ray-florets 20–30+; laminae 8–12 mm. Cypselae whitish to stramineous, 4–5.5 mm, apices ± coronate, faces striate or furrowed; pappi of 2 straight to curled, usually smooth, sometimes barbellulate, subulate scales 2.5–4+ mm, shorter than disc corollas.


Phenology: Flowering Jul–Sep.
Habitat: Disturbed sites, grasslands, forest openings
Elevation: 900–1300 m

Discussion

Of conservation concern.

But for the usually stipitate-glandular indument of the stems and leaves, plants called Grindelia howellii are very much like plants that have been called G. nana forma brownii Steyermark, G. nana forma longisquama Steyermark, and G. paysonorum H. St. John [= G. nana var. paysonorum (H. St. John) Steyermark], all typified by specimens included here in G. hirsutula. In some plants of G. howellii, the glands on the leaves range from stipitate to ± embedded (e.g., Pierce 1146, ID). Taxonomic rank for plants that have been called G. howellii should be reconsidered.

Selected References

None.

Lower Taxa

None.
... more about "Grindelia howellii"
not tailed +, rounded +  and obtuse +
resinous +
distinct +
coronate;terete;mostly looped;hooked +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
John L. Strother +  and Mark A. Wetter +
Steyermark +
setiform +
cuneate +
compound +  and simple +
rugulose +  and muricate +
barbellulate +  and barbellate +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (6 cm60 mm <br />0.06 m <br />) +
oblong;oblanceolate or lanceolate +
spatulate +  and triangular lanceolate or linear +
yellow +  and orange +
beaked +, 2-ribbed +  and 5-ribbed +
whitish +  and stramineous +
3-4-angled +, compressed +, ellipsoid +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
Idaho +  and Mont. +
900–1300 m +
gland-dotted +
glabrous +  and stipitate-glandular +
rugose +  and scabridulous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed sites, grasslands, forest openings +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
broadly urceolate;globose +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
spreading;erect +
deltate +
serrate to denticulate +  and entire +
pinnatifid +, crenate +  and entire +
2-carpellate +
barbellulate +  and barbellate +
contorted to curled +  and straight +
Flowering Jul–Sep. +
obscurely +  and 1-nerved +
spreading +  and appressed +
linear-attenuate +  and lance-linear +
subequal +  and unequal +
Ann. Missouri Bot. Gard. +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
barbellulate +
straight +
subulate +  and curled +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
exalbuminous +
Endemic +  and Conservation concern +
branched +  and simple +
1 (?) +  and 6 (?) +
resinous +
stramineous +  and redbrown +
stipitate-glandular +
lanceolate +  and more or less deltate +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Grindelia howellii +
Grindelia +
species +
ampliate +
25 cm250 mm <br />0.25 m <br /> (60 cm600 mm <br />0.6 m <br />) +
60 cm600 mm <br />0.6 m <br /> (90 cm900 mm <br />0.9 m <br />) +