Tuctoria greenei

(Vasey) Reeder
Common names: Awnless spiralgrass
Endemic
Treatment appears in FNA Volume 25. Treatment on page 294.
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Culms 5-15 (30) cm, erect or decumbent, often geniculate; nodes often purplish. Blades 1.5-5 cm long, to 5 mm wide, curved outward. Spikes 2.5-5 (8) cm, exserted at maturity, congested above; lower internodes 4-5 mm; upper internodes 1-2 mm. Spikelets with 5-15 (40) florets. Glumes subequal, 3-5 mm, prominently many-veined, irregularly dentate at the apices; lemmas (3) 4-5 (6) mm, prominently 9-13-veined, apices truncate and mucronate; paleas slightly shorter than the lemmas; anthers 3-3.5 mm, whitish; lodicules about 0.1 mm, not fused to the paleas. Caryopses about 2 mm, slightly compressed laterally, oblong, minutely rugose. 2n = 24.

Discussion

Tuctoria greenei grows at elevations below 150 m in the Central Valley of California.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number."/3" is not declared as a valid unit of measurement for this property.

... more about "Tuctoria greenei"
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
mucronate +
John R. Reeder +
(Vasey) Reeder +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
mushroom-button--shaped +
usually linear +  and lanceolate occasionally ovate +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spikelike +
oblong +  and compressed +
2 cm20 mm <br />0.02 m <br /> (?) +
dumbbell--shaped +
Awnless spiralgrass +
branching +  and simple +
decumbent +  and erect +
geniculate +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
5 +  and 15 +
round +  and compressed +
shorter or longer +
subtending +
entire +  and short-toothed +
subequal +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
uncinate +
spicate +  and ebracteate +
paniculate +  and racemose +
cylindrical +  and clavate or capitate +
hollow +  and solid +
not absent +
denticulate +  and entire +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
truncate +  and slightly emarginate +
0.1 cm1 mm <br />0.001 m <br /> (?) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
subequal +  and or slightly shorter +
dry +  and fleshy +
disarticulating +
8 cm80 mm <br />0.08 m <br /> (?) +
clavate +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
pedicellate +  and sessile +
1 +  and 60 +
compressed +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
filiform +
Gramineae +
Tuctoria greenei +
Tuctoria +
species +
membranous +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
conspicuous +
5 (?) +  and 17 (?) +
aquatic +  and terrestrial +
viscid-aromatic +
dioecious +, monoecious +  and synoecious +