Cypripedium parviflorum var. parviflorum

Common names: Small yellow lady’s-slipper
Treatment appears in FNA Volume 26. Treatment on page 505. Mentioned on page 504.
Revision as of 04:19, 30 July 2020 by imported>Volume Importer
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Bracts: abaxial surface of distalmost sheathing bract (and often the next) densely and conspicuously silvery-pubescent when young (later sometimes glabrescent). Leaves 4–5, rather evenly spaced along stem, alternate, spreading; blade orbiculate to lance-elliptic to ovate or obovate, 9–19 × 2.5–9 cm. Flowers 1–2, small, scent moderate to faint, rose or musty; sepals and petals usually minutely but densely spotted with reddish-brown or madder and appearing uniformly dark, rarely only coarsely spotted and blotched; lip oblance-ovoid to calceolate (slipper-shaped), 22–34 mm; orifice 12–19 mm.


Phenology: Flowering Apr–Jun.
Habitat: Mesic to dry deciduous and deciduous-hemlock forests, usually on slopes
Elevation: mostly 0–1200 m

Distribution

V26 1030-distribution-map.jpg

Ala., Ark., Conn., Del., Ga., Ill., Kans., Md., Mass., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., R.I., Tenn., Va.

Discussion

Selected References

None.

Lower Taxa

None.
silvery-pubescent +
self-pollination +
Charles J. Sheviak +
Salisbury +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
9 cm90 mm <br />0.09 m <br /> (19 cm190 mm <br />0.19 m <br />) +
orbiculate +  and lance-elliptic +
2.5 cm25 mm <br />0.025 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Small yellow lady’s-slipper +
Ala. +, Ark. +, Conn. +, Del. +, Ga. +, Ill. +, Kans. +, Md. +, Mass. +, Mo. +, Nebr. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, R.I. +, Tenn. +  and Va. +
1.9 cm19 mm <br />0.019 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (4 cm40 mm <br />0.04 m <br />) +
mostly 0–1200 m +
3-merous +, sessile +  and pedicellate +
musty +  and rose +
moderate +
ellipsoid;oblong-ellipsoid +
Mesic to dry deciduous and deciduous-hemlock forests, usually on slopes +
lateral +  and terminal +
petiolate +, sessile +  and simple +
alternate +  and spaced +
cauline +  and basal +
4 (?) +  and 5 (?) +
reduced +
white +, pale +  and deep yellow +
oblance-ovoid +  and calceolate +
larger +
2.2 cm22 mm <br />0.022 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
differing in form and color +
1.2 cm12 mm <br />0.012 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
1-many-flowered +  and cymose +
pendent +  and erect +
spotted and blotched +  and spotted with reddish-brown or spotted with madder and appearing uniformly dark +
24mm;97mm +
horizontal +  and strongly descending +
oblong;lanceovate;undulate +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering Apr–Jun. +
Trans. Linn. Soc. London +
short;elongate +
aerial +  and subterranean +
slender +
minute +
spotted and blotched +  and spotted with reddish-brown or spotted with madder and appearing uniformly dark +
distinct +
foliaceous +
not +  and alike +
Illustrated +  and Endemic +
ovoid-oblong +, lanceovoid +, deltoid +  and cordiform-ovoid +
scapose +  and leafy +
pendent +  and erect +
proliferous +
thickened +  and stout +
2-3-lobed +
reddish spots +
1.1 cm11 mm <br />0.011 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
Cypripedium parviflorum var. parviflorum +
Cypripedium parviflorum +
variety +
aquatic +, lithophytic +, terrestrial +  and epiphytic +
saprophytic +, photosynthetic +  and mycotrophic +