Lorandersonia salicina

(S. F. Blake) Urbatsch

Sida 21: 1624. 2005.

Common names: Willow glowweed
Endemic
Basionym: Haplopappus salicinus S. F. Blake Proc. Biol. Soc. Wash. 48: 171. 1935 (as Aplopappus)
Synonyms: Hesperodoria salicina (S. F. Blake) G. L. Nesom
Treatment appears in FNA Volume 20. Treatment on page 181. Mentioned on page 178.

Subshrubs 30–60 cm. Stems single (erect to ascending), green when young, woody portions tan becoming gray, highly branched (leafy branches possibly annual, arising from basal, woody branches), gland-dotted (in deep, resin-filled pits). Leaves erect to spreading, becoming deflexed, more widely spaced and ± reduced distally; blades with midnerves plus 2 fainter collateral nerves evident, linear to narrowly elliptic, 35–60 × 1.5–3 mm, flat, apices attenuate, faces glabrous, densely gland-dotted (in deep, circular, resin-filled pits). Heads in racemiform arrays or clustered at branch tips, forming highly branched corymbiform arrays 0.5–10 cm wide. Involucres hemispheric, 4–5 × 2.5–4 mm. Phyllaries 28–34 in 4–6 series, mostly whitish tan, midnerves mostly obscure, outer ± thickened distally, convex, ovate or oblong to spatulate, 0.5–4 × 0.8–1.2 mm, unequal, chartaceous, margins broadly scarious, entire or ± fimbriate, stipitate-glandular, apices rounded-obtuse, faces glabrous. Receptacles usually with 3–5 scales 0–1 mm. Ray-florets 0. Disc-florets 8–14; corollas 3.5–4.2 mm, glabrous, lobes 1.2–1.7 mm; style-branches exserted, 1.7–2 mm, appendages attenuate, 0.7–0.9 mm. Cypselae tan, oblong, 2–3 mm, 4–6 ribbed, faces moderately hairy; pappi whitish (fine, ± flattened, barbellate), 2–3 mm.


Phenology: Flowering fall.
Habitat: Rocky soils, cliff faces
Elevation: 300–1000 m

Discussion

Lorandersonia salicina is sometimes treated as a variety of Hesperodoria scopulorum or as a distinct, atypical species in that genus (G. L. Nesom 1991f). Phylogenetic analyses (R. P. Roberts and L. E. Urbatsch 2004) relate this taxon to the current genus.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Lorandersonia salicina"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
corymbiform +, branched +  and racemiform +
indeterminate +  and determinate +
rounded +
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(S. F. Blake) Urbatsch +
decurrent +
Haplopappus salicinus +
linear;oblong or lanceolate +
rugulose +  and muricate +
subequal +
elliptic +  and linear to narrowly +
3.5 cm35 mm <br />0.035 m <br /> (6 cm60 mm <br />0.06 m <br />) +
evident +  and fainter +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Willow glowweed +
not 2-lipped +  and actinomorphic +
pale +  and dark yellow +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
4 +  and 6 +
fertile +  and bisexual +
fertile +  and bisexual +
300–1000 m +
resinous +
gland-dotted +
hairy +  and glabrous +
pustulate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky soils, cliff faces +
indeterminate +
heterogamous +  and homogamous +
0.5 cm5 mm <br />0.005 m <br /> (10 cm100 mm <br />0.1 m <br />) +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
hemispheric +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
petiolate +  and sessile +
reduced +
spreading;recurved +
lanceolate +  and triangular +
serrate +  and entire +
stipitate-glandular +
fimbriate +  and entire +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
2-carpellate +
persistent +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering fall. +
ovate +  and oblong or lanceolate +
subequal +  and unequal +
gland-dotted +  and tan becoming gray +
bearing subulate enations +, hairy +  and bristly +
3 +  and 5 +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
exalbuminous +
resinous +
erect +  and ascending +
attenuate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Hesperodoria salicina +
Lorandersonia salicina +
Lorandersonia +
species +
perennial +, biennial +  and annual +