Perityle megalocephala var. megalocephala
IllustratedEndemic
Treatment appears in FNA Volume 21. Treatment on page 327.
Plants 30–55 cm. Leaves: petioles 1–6 mm; blades ovate, lanceolate-ovate or elliptic to suborbiculate, 4–8 (–12) × 3–9 (–12) mm. Pappi callous crowns or of vestigial, hyaline scales. 2n = 34.
Phenology: Flowering spring–fall.
Habitat: Crevices and rocky slopes in arid mountains
Elevation: 1400–3000 m
Discussion
Variety megalocephala is relatively common, growing usually in volcanic, also granitic and limestone rock in arid mountains of western and south-central Nevada and adjacent California. The lack of rays and pappus bristles separates var. megalocephala from the similar Perityle stansburii.
Selected References
None.
Lower Taxa
None.
... more about "Perityle megalocephala var. megalocephala"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
corymbiform +
continuous +
decurrent +
elliptic;suborbiculate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
single +
subequal +
equal +
absent +
zygomorphic +
yellow +
callous +
monomorphic +
dimorphic +
2.5mm;3mm +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
cylindric +
equaling +
singly +
singly +
indeterminate +
Present +
surrounding +
campanulate +
cauline +
deltate +
? (?) +
short-hairy +
thin-calloused +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
vestigial +
of 1-2(-6) equal or subequal , smooth , antrorsely barbellulate or subplumose , bristles +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Contr. Gray Herb. +
1918 +
pistillate +
absent +
fertile +
epaleate +
pitted +
convex;flat +
fibrous +
hyaline +
callous +
vestigial +
callous +
exalbuminous +
modifed +
alternate +
2-branched +
papillate +
Perityle megalocephala var. megalocephala +
Perityle megalocephala +
variety +
equal +
shorter +
perennial +
hirtellous +
hirtellous +