AZ, Colorado Plateau, 20060411
Grand Canyon, rim above Marble Canyon, flowers. 

East rim of Marble Canyon just N of Twentynine Mile Canyon.

Detail of spines. Plant. 

Echinocactus polycephalus polycephalus 

Echinocereus engelmannii 

Detail of spines. Plant. 

Escobaria vivipara deserti 

Detail of fr. Detail of spines. Plant. 

Opuntia echinocarpa? 

Detail of spines. Plant. 

Opuntia polyacantha 

Close-up of fl. Plant in full bloom. Plant starting to bloom. 

Castilleja angustifolia 

In wash on rim. 
 GEN sev brs from base (apparently making it peren)
 HAIR short and long d downward arching, sl thickened base, multicellular, some fine clear gland puberulence on calyx
 LF 3-5 lobes, 50x8mm, lat lobes to 15x2mm, lobes lin, central body lance, tip rounded, lobes spreading, purplish, bracts 5-lobed and shorter w red tips, uppermost lvs 5-lobed but not red
 SEP 15mm, front and back cuts 4mm, lat cuts 3mm, lobes all eq, lobes red while rest greenish purplish
 PET 
low lips 2mm, green
galea 10+mm (not fully developed yet), yell-green, tube = galea, tube and back of galea puber
 STYLE 2 lobed

Lower surface of lamina, at 30x. Top of lamina, at 30x.  Note tangled hairs protruding from below. 

Cheilanthes feei [voucher] 

In limestone crevice on side of rocky wash. 
 GEN v short creep if at all, cesp
 ST deep br, long crinkly pilose, terete
 LF 3-pin, segs bead-like, glab ab but some tangled hairs protruding from bel, v d tawny to white vill bel obscuring undersurface entirely, no scales

\

Poa fendleriana longiligula [voucher] 

Just starting to bloom; only one other (Bromus madritensis) blooming now.
 GEN peren, cesp, dioec
 LF upper ones short and v obviously prow-tipped w white marg and tip
ligule 6-8mm, white scar
 INFL ellip-lance, 100x20mm, v dense
 SPKLT 6mm, 3+ fls, sl lat comp, callus glab
gls approx 3mm, 1 vein, glab
lem approx 4-5mm, appress silky hairy on midvein and marg veins bel half, 3 veins
pal nearly eq lem

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Copyright ©2007 Jason Hollinger
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Last changed on August 17, 2007