UT, Colorado Plateau, 20060421
Robber's Roost, flowers. 

Head of Alcatraz. (Also called "TCB" or something like that.)

Lf tomentum, at 30x.  Lf is about 2mm wide. Close-up of fl, top view, at 10x. Dissected fl, at 30x.  Can just make out how style is actually two weakly joined styles. Dissected fl, at 10x.  Can just make out how style is actually two weakly joined styles. Plant in fl. 

Amsonia tomentosa [voucher] 

 GEN peren, wh tom making it appear greyish
 LF alt, lin-ellip, long acute, long wedge, 22x2+0mm, erect, wavy, tom
 INFL d term pan, pedicel ~1mm
 SEP 5, free, tom, 7x.6mm, awl, erect
 PET 5, join, salverform
tube 5x1mm, incl, greenish purplish, glab
throat 5x2mm, bulging, greenish purplish, glab
lobes 8x3mm, 90deg, ellip, acute, wilted look, white to purplish
yellow in narrow opening of throat, d pil inside
 STAM 5, att near top of throat among hair, yell-brown, fil short (1mm?), incl
 OV 2, free, sup, sev ovules per ovary
 STYLE 2, joined ab, funky top-shaped shiny green 2-lobed stigma thingy, incl, eq anth

Astragalus [voucher] 

 GEN ann?, v small tufts, no st
 LF odd-pin
lflts 5, ellip, 18x7+0mm, acute, wedge, folded
v d clear-white strig all over, round-ovate-spat-like, about 25-30x25-30+20-25mm, stips ? 
 INFL v short d term rac, internodes < 1mm, pedicel 2-3mm, 1 bract per fl
 SEP 16x6x4mm, lat comp, bulging nearly full length on top side (behind banner), lobes 4-5mm thread, v d strig w v few black mixed in
 BAN 25mm long, 17x10mm, purp, deep purp at v base w white streaks around it w lilac and purp veins outside that, 60-70deg, marg folded back a bit
 WING 26mm long, vivid purp, exceeds banner on horz axis but not on curved axis
 KEEL 23mm long, blunt, deep purp esp near tip

Cymopterus [voucher] 

 GEN ann, no st, tiny, in sandy wash
 LF 3-4, 2-pin-pinfid, ov, 33x27+20mm, glab
segs acute, 1.5mm wide
 INFL d comp umbel, br'd once, peduncle 10mm
bracts deeply disected hand-like, 3-4 lobes
lobes 5x1.5mm, acute
appress
1-brs 4-5, 1-2mm, ascending
2-brs 12-15 or so, subsess, ascend
 FL yell, 2mm wide? 
 FR ? 
This genus is only in Taylor, who also suggests Lomatium.  I have no clue.

Astragalus amphioxys? [voucher] 

 GEN peren?, matted, no st
 LF silvery
lflt 13+, ellip, v folded, 5x2+0mm
d wh wavy strig, internodes 2.5mm, oblong-lance, 20x10+15mm
 STIP large, separate, asym ov, lfy
 INFL d term rac, 10-12 fls, internodes 0-3mm, some whorls of 3, fls spread
bracts 1 per fl, 3-4mm, scale-like, appress
 SEP 6.5x2.5x2mm, sl lat comp, sl more deeply cut ab, lobes 2-2.5mm, d white tom w some black mixed in
 BAN 10mm long, 7.5x5.5mm, 70-80deg, lilac to purp, short basal stripe either side of center white w purp veins, ridge on either side of center due to marg folding back
 WING 10-10.5mm, dk purp, exceeds banner on horz axis but not curved axis
 KEEL 9.5-10mm long, dk purp, blunt
 FR ? 
Pure guess on species based on flower color and size in Taylor.

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Last changed on August 17, 2007