Anemone okennonii

Keener & B. E. Dutton

Sida 16: 198. 1994.

Common names: Okennon's anemone
Endemic
Synonyms: Anemone tuberosa var. texana Enquist & Crozier
Treatment appears in FNA Volume 3.

Aerial shoots 20-30 cm, from tubers, tubers ±vertical. Basal leaves 4-10, 2-3-ternate or irregularly so; petiole 5-10 cm; terminal leaflet petiolulate, obovate, 1.2-1.8 (-20) × ca. 1.5 (-2.5) cm, base narrowly cuneate, margins coarsely serrate to nearly incised on distal 1/2, ciliate or not, apex broadly acute, surfaces nearly glabrous; lateral leaflets 1-2×-lobed or parted; ultimate lobes 2-5 mm wide. Inflorescences (1-) 2-3-flowered cymes; peduncle proximally nearly glabrous, distally downy; involucral-bracts primarily 3, (1-) 2-tiered, simple, dissimilar to basal leaves, obtriangular, 3-cleft to pinnatifid, 2-5 cm, bases clasping, ±connate, margins incised throughout, apex acuminate, surfaces appressed-pilose; segments primarily 3, linear; lateral segments unlobed or 1×-lobed; ultimate segments 1-2 mm wide. Flowers: sepals 7-11, greenish white to abaxially reddish, oblong, 6-12 (-14) × (2-) 3-4.5 mm, abaxially hairy, adaxially glabrous; stamens 35-55. Heads of achenes oblong-ellipsoid; pedicel 10-18 cm. Achenes: body ovate, flat, not winged, densely white-villous (with long tuft of hairs at base); beak ±straight, ca. 1 mm, hidden in achene indument, white-tomentose, not plumose.


Phenology: Flowering spring (Mar–Apr).
Habitat: Dry, open ledges and slopes
Elevation: 500-1500m

Discussion

Selected References

None.

Lower Taxa

None.

"broadened" is not a number.

... more about "Anemone okennonii"
Acuminate (?) +  and Acute (?) +
Bryan E. Dutton +, Carl S. Keener +  and Bruce A. Ford +
Keener & B. E. Dutton +
irregularly +  and 2-3-ternate +
connate +
cuneate +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
straight +
white-tomentose +
not plumose +
1 cm10 mm <br />0.01 m <br /> (?) +
white-villous +
globose;cylindric +
Okennon's anemone +
(1-)2-3-flowered +
500-1500m +
sessile +  and pedicellate +
showy +  and inconspicuous +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
stalked +, sessile +  and aggregate +
ovoid;obovoid +
Dry, open ledges and slopes +
oblong-ellipsoid +
axillary +  and terminal +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1×-lobed +  and unlobed +
petiolate +, compound +  and simple +
whorled +, opposite +  and alternate +
palmate +  and pinnate +
incised;coarsely serrate;nearly incised +
10 cm100 mm <br />0.1 m <br /> (18 cm180 mm <br />0.18 m <br />) +
downy +  and glabrous +
distinct +
conspicuous +
reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering spring (Mar–Apr). +
not arillate +  and stalked +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
greenish white;abaxially reddish +
not persistent +
distinct +
glabrous +  and hairy +
7 +  and 11 +
0.35 cm3.5 mm <br />0.0035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
persistent +
appressed-pilose;glabrous +
Anemone tuberosa var. texana +
Anemone okennonii +
species +
1.8 cm18 mm <br />0.018 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
2-9-flowered +
herbaceous +  and woody +