Mentzelia laevicaulis var. laevicaulis
Common names: Giant blazingstar
IllustratedEndemic
Synonyms: Mentzelia acuminata (Rydberg) Tidestrom
Treatment appears in FNA Volume 12. Treatment on page 514.
Leaf-blades 39.8–154 × 8.4–40.4 mm, widest intersinus distance 4.9–24.6 mm; proximal oblanceolate to elliptic, margin lobes 18–44, 2.5–8.9 × 3.6–9.6 mm; distal with base clasping or non-clasping, margin lobes 14–42, 2.1–6.1 × 3.2–6.3 mm; adaxial surfaces with needlelike trichomes. Bracts 13–29 × 1–5 mm, margins entire or pinnate. Flowers: petals 43–70 × 8–17.3 mm; 5 outermost stamens 39–55 × 1–2 (–2.5) mm. Capsules cylindric, 22–43 × 8–11.1 mm. Seed-coat: papillae 4–11 per cell.
Phenology: Flowering May–Oct.
Habitat: Dry streambed bottoms and banks, gravel bars, hillside slopes, roadsides, roadcuts, sand dunes.
Elevation: 0–3000 m.
Distribution
Ariz., Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
Discussion
Selected References
None.
Lower Taxa
None.
No values specified."longest" is not a number."not elongating" is not a number.
... more about "Mentzelia laevicaulis var. laevicaulis"
outer +
epigynous +
straight +
glabrous +
acute +
long +
broad +
not persistent +
absent +
widest;8.4mm;40.4mm +
unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;oblanceolate;spatulate;linear;lanceolate;elliptic;ovate;cordate;deltate;hastate +
proximal +
straight +
cylindric +
anticlinal +
Giant blazingstar +
lanceolate +
symmetric +
bisexual +
dehiscing +
Dry streambed bottoms and banks, gravel bars, hillside slopes, roadsides, roadcuts, sand dunes. +
Present +
longer +
simple +
alternate +
antrorse +
? (?) +
toothed +
distal +
absent +
sterile +
not petaloid +
parietal +
1;60 +
4;11 +
inconspicuous +
epigynous +
differentiated +
symmetric +
golden yellow +
persisting +
43mm;70mm +
absent +
3-carpellate +
parietal +
Fl. N. Amer. +
1840 +
isodiametric +
polygonal +
winged +
2;60 +
symmetric +
green +
persisting +
persistent +
connate +
shorter +
longitudinal +
symmetric +
golden yellow +
fertile +
petaloid +
absent +
entire +
straight +
erect +
papillate +
absent +
Mentzelia laevicaulis var. laevicaulis +
Mentzelia laevicaulis +
variety +
needlelike +
pointed +
stinging +
anticlinal +
wavy +