Sedum obtusatum var. retusum

(Rose) H. Ohba

J. Bot. Res. Inst. Texas 1: 889. 2007,.

Basionym: Gormania retusa Rose in N. L. Britton and J. N. Rose, New N. Amer. Crassul., 31. 1903
Treatment appears in FNA Volume 8. Treatment on page 218. Mentioned on page 217.

Rosettes loose, internodes visible. Leaf-blades (5–) 8–17 mm. Flowering shoots 2–8 cm. Flowers: sepals 3 mm, apex acute; petals white, greenish or creamy white, or pale orangish, 6–9 × 2.4–3.8 mm; anthers 1.2–1.5 mm. 2n = 60.


Phenology: Flowering late spring–early summer.
Habitat: Outcrops
Elevation: 400-2300 m

Discussion

Variety retusum occurs on the North Coast Ranges and the Siskiyou and Klamath mountains.

Selected References

None.

Lower Taxa

None.
perigynous +  and hypogynous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Hideaki Ohba +
(Rose) H. Ohba +
not scarious +
Gormania retusa +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
red +, punct +, green suffused with red +, blue-green +  and green +
lobed +  and toothed +
linear +  and orbiculate or spatulate terete semiterete or subterete +
0.1 cm1 mm <br />0.001 m <br /> (8 cm80 mm <br />0.08 m <br />) +
succulent +
spatulate +  and linear-oblong +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not recurved +
1-2-forked +
not circumscissile +
whorled +, opposite +  and alternate +
not circumscissile +
Calif. +  and Oreg. +
400-2300 m +
yellow +  and white +
connate +  and distinct +
spreading;erect +
Outcrops +
4-15-branched +  and 5-45-flowered +
axillary +  and terminal +
spatulate;obovate +
persistent +  and deciduous +
connate +
2.2 cm22 mm <br />0.022 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
not pruinose +
1.2 cm12 mm <br />0.012 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
not glaucous +
flattened +, subterete to somewhat +, oblanceolate +, spatulate +  and obovate +
4mm;10mm +
spatulate;reniform;spatulate;reniform;oblong;square;oblong +
semi-inferior +  and superior +
tenuinucellate +, crassinucellate +  and bitegmic +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
perigynous +  and hypogynous +
pale orangish +, creamy white +, greenish +  and white +
spreading +  and erect +
carinate +, obovate +, spatulate +  and oblanceolate-oblong +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
Flowering late spring–early summer. +
(3-)4-5(-12)[-30+]-carpellate +
distinct +  and connate +
J. Bot. Res. Inst. Texas +
reticulate-papillose +  and reticulate +
ovoid;ellipsoid +
0.53 cm5.3 mm <br />0.0053 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
purplish +  and pale green +
lanceolate +  and ovate +
unequal +
3 cm30 mm <br />0.03 m <br /> (?) +
2 cm20 mm <br />0.02 m <br /> (?) +
1 +  and many +
branched +  and simple +
10 cm100 mm <br />0.1 m <br /> (12 cm120 mm <br />0.12 m <br />) +
adnate +  and free +
antipetalous +
2 times as many as sepals +
much-branched +
creeping +  and procumbent +
ascending +  and erect +
succulent +
distinct +
Gormania obtusata +
Sedum obtusatum var. retusum +
Sedum obtusatum +
variety +
not conspicuous +
perennial +, biennial +  and annual +
3 +  and 5 +