Humulus lupulus var. pubescens

E. Small

Syst. Bot. 3: 63. 1978.

Endemic
Treatment appears in FNA Volume 3.
Revision as of 07:22, 30 July 2020 by imported>Volume Importer
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Stems relatively pubescent at nodes, usually more than 15 hairs per 0.1 sq. mm at most pubescent portion (excluding angle of petiole with stem). Leaf-blades 10 cm or more usually having fewer than 5 lobes; smaller blades (ca. 5 cm) often with no more than 3 easily visible veins branching off midrib (excluding proximal branches); surfaces abaxially conspicuously pubescent, more than 100 hairs per cm on length of medial midrib, more than 25 glands per 10 sq. mm between veins, hairs present between veins.


Habitat: Moist thickets, woods
Elevation: 0-1000 m

Distribution

V3 1107-distribution-map.gif

Ark., Ill., Ind., Iowa, Kans., Md., Minn., Mo., Nebr., N.Y., N.C., Ohio, Okla., Pa., Va.

Discussion

Humulus lupulus var. pubescens intergrades with other varieties. It is found primarily in the midwestern United States.

Selected References

None.

Lower Taxa

None.
compressed +  and ovoid +
Ernest Small +
E. Small +
10 cm100 mm <br />0.1 m <br /> (?) +
unlobed +, 3-7-lobed +  and cordate +
compound +  and staminate +
pendent +  and erect +
(10-)20-100+-flowered +
Ark. +, Ill. +, Ind. +, Iowa +, Kans. +, Md. +, Minn. +, Mo. +, Nebr. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +  and Va. +
0-1000 m +
pistillate +, staminate +  and short-pedicellate +
paired +  and solitary +
whitish;yellowish +
loosely +  and covered +
transitional-bisexual +  and unisexual +
Moist thickets, woods +
2-branched +  and stalked +
straight +
present +
pedunculate +  and staminate +
pendent +  and erect +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
ovoid +  and oblong +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
unlobed +, lobed +  and cordate +
alternate +  and decussate +
compound +  and staminate +
pendent +  and erect +
mottled +  and brownish +
accrescent +
whitish +  and greenish +
hypogynous +
hypogynous +
filiform +
triangular +
resin-dotted and×or gland-dotted +
Humulus lupulus var. pubescens +
Humulus lupulus +
variety +
with soft pubescence +  and glabrous +
rhizomatous +  and taprooted +
perennial +  and annual +
rightward-twining +
600 cm6,000 mm <br />6 m <br /> (700 cm7,000 mm <br />7 m <br />) +