familyPteridaceae
genusPentagramma
speciesPentagramma triangularis
subspeciesPentagramma triangularis subsp. maxonii
Pentagramma triangularis subsp. maxonii
Amer. Fern J. 80: 16. 1990.
Basionym: Pityrogramma triangularis var. maxonii Weatherby Rhodora 22: 119. 1920
Treatment appears in FNA Volume 2.
Petiole glabrous, not viscid-glandular, rarely white-farinose proximally. Blades thin and herbaceous (but not leathery), not viscid-glandular, abaxially densely white-farinose, adaxially with scattered yellow capitate glands. Distal pinnae mostly regularly lobed. Proximal basiscopic lobes of basal pinnae pinnatifid, often deeply so. 2n = 60, 120.
Habitat: Desert scrub and in pine and oak woodlands
Elevation: 100–2500 m
Distribution
Ariz., Calif., N.Mex., Mexico in Baja California, Sonora
Discussion
Selected References
None.
Lower Taxa
None.
"thin" is not a number.
... more about "Pentagramma triangularis subsp. maxonii"
interrupted +
vertical +
3-celled +
not viscid-glandular +
1-6-pinnate +
herbaceous +
absent +
white-farinose +
leathery +
full +
lobed +
prominent +
prominent +
lacking +
absent +
viscid +
not striate +
dull +
asymmetric +
green +
aboveground +
glabrous +
obcordate;reniform +
capitate +
scattered +
yellow +
commonly +
monomorphic +
clustered +
dimorphic +
revolute +
not recurved +
complex +
not viscid-glandular +
chestnut-brown;dark-brown +
shiny +
basiscopic +
pinnatifid +
Amer. Fern J. +
1990 +
straight +
elevated +
2;3 +
bicolored with black +
persistent +
hard +
confluent +
Illustrated +
trilete +
terrestrial +
small +
branched +
creeping +
continuous +
Pentagramma triangularis subsp. maxonii +
Pentagramma triangularis +
subspecies +
fused +
adnate +
single +
branched +
pinnate +
divergent +
free +
obscure +
forked +
perennial +