Petrophytum caespitosum subsp. acuminatum
Aliso 4: 92. 1958.
Conservation concernEndemic
Basionym: Petrophytum acuminatum Rydberg in N. L. Britton et al. , N. Amer. Fl. 22: 253. 1908
Short-shoots compressed into tight rosettes. Leaf-blades 1–1.8 cm, abaxial surface sparsely strigose. Inflorescences compressed panicles, usually appearing racemose, with scattered bracts along peduncle, branches uncommon, 0.5–1 cm. Flowers: petal apex acute to acuminate.
Phenology: Flowering Jun–Sep.
Habitat: Limestone cliffs
Elevation: 1200–2500 m
Distribution
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Calif.
Discussion
Of conservation concern.
Subspecies acuminatum is known only from the southern Sierra Nevada in Fresno and Tulare counties.
Selected References
None.
Lower Taxa
None.
"dm" is not declared as a valid unit of measurement for this property.
... more about "Petrophytum caespitosum subsp. acuminatum"
strigose +
aggregated +
perigynous +
dehiscent +
middle +
obtuse;slightly cleft or acute +
aging +
1 - -3-veined +
visible +
spatulate +
coriaceous +
scattered +
absent +
absent +
uncommon +
connate +
simple +
alternate +
Calif. +
aggregated +
absent +
aggregated +
dense +
aggregated +
2 cm20 mm <br />0.02 m <br /> - ? +
dehiscent +
lanceoloid +
coriaceous +
fascicles +
persistent +
sericeous +
1 cm10 mm <br />0.01 m <br /> - ? +
10-100-flowered +
racemose +
axillary +
crassinucellate +
alternate +
marcescent +
persistent +
absent +
1-3-veined +
indistinct +
sericeous +
absent +
aggregated +
clustered +
racemose +
sericeous +
compressed +
narrow +
absent +
perigynous +
white +
persistent +
withering +
oblanceolate +
absent +
1;250 +
Aliso +
1958 +
not arillate +
2;1 +
list;count +
persistent +
erect +
middle +
ovatelanceolate +
glabrous +
compressed +
1.5-2 - -2.5 times petals +
longer +
equal +
intertwined +
coalesced +
capitate +
minute +
palmate +
pinnate +
absent +
distinct +
terminal +
not elongate +
Petrophytum caespitosum subsp. acuminatum +
Petrophytum caespitosum +
subspecies +
developed +
absent +
inconspicuous +
thickened +
unarmed +
perennial +