Brickellia knappiana

Drew

Pittonia 1: 260. 1888.

EndemicConservation concern
Treatment appears in FNA Volume 21. Treatment on page 501. Mentioned on page 492, 502.

Shrubs, 100–200 cm. Stems (arching) branched from near bases, glanddotted. Leaves alternate; petioles 4–5 mm; blades 3-nerved from bases, lanceovate to lanceolate, 10–35 × 1–16 mm, bases acute to attenuate, margins dentate to serrate, apices acute to acuminate, faces densely glanddotted and sparsely pubescent (not shiny). Heads in paniculiform arrays. Peduncles 2–5 mm, densely glandular-pubescent. Involucres cylindric to narrowly campanulate, 6–9 mm. Phyllaries 18–22 in 5–7 series, greenish, 3–4-striate, unequal, margins scarious (apices acute to acuminate); outer lanceovate (sparsely puberulent, glanddotted), inner lanceolate (glabrous). Florets 5–7; corollas white, 5–6.5 mm. Cypselae 2.5–3, puberulent to sparsely pubescent; pappi of 28–32 white, barbellulate bristles.


Phenology: Flowering Sep–Oct.
Habitat: Gravelly washes
Elevation: 700–1700 m

Discussion

Of conservation concern.

Brickellia knappiana is found only in the mountains of eastern California. It is noted as a possible hybrid between B. californica and B. multiflora. Collections from mixed populations of B. knappiana and B. californica have been noted on herbarium specimens.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Brickellia knappiana"
not tailed +, truncate +, rounded +  and obtuse +
scarious +
usually ovate +  and lanceolate +
usually terete +  and clavate +
paniculiform +
indeterminate +  and determinate +
Randall W. Scott +
acute +  and attenuate +
enlarged +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
dissected +, lobed +, toothed +  and entire +
lanceovate;lanceolate +
1mm;16mm +
papillate +  and rugose +
(4-)5-angled;10-ribbed +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
puberulent +  and sparsely pubescent +
2.5 +  and 3 +
prismatic +
fertile +  and bisexual +
700–1700 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Gravelly washes +
indeterminate +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
cylindric;narrowly campanulate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
sessile +  and petiolate +
lanceolate +  and lance-linear +
entire +  and dentate +
toothed +, serrate +, lobed +, laciniate-dentate +  and crenate +
2-carpellate +
persistent +
glandular-pubescent +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Sep–Oct. +
18 +  and 22 +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
hirsutulous +
papillate +
Compositae +
Brickellia knappiana +
Brickellia +
species +
cylindric +
perennial +  and annual +