Difference between revisions of "Salix humilis var. tristis"

(Aiton) Griggs

Proc. Ohio Acad. Sci. 4: 301. 1905.

Common names: Dwarf prairie willow
Basionym: Salix tristis Aiton Hort. Kew. 3: 393. 1789
Synonyms: Salix humilis var. microphylla (Andersson) Fernald
Treatment appears in FNA Volume 7. Treatment on page 130. Mentioned on page 129.
FNA>Volume Importer
imported>Volume Importer
Line 58: Line 58:
 
|publication year=1905
 
|publication year=1905
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_138.xml
+
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V7/V7_138.xml
 
|genus=Salix
 
|genus=Salix
 
|subgenus=Salix subg. Vetrix
 
|subgenus=Salix subg. Vetrix

Revision as of 23:54, 27 May 2020

Low to mid shrubs, 0.3–1 m. Stems decumbent; branches tomentose, peeled wood smooth or striate, striae sparse, to 2 mm; branchlets yellow-brown. Leaves: stipules absent or rudimentary on late ones; petiole 0.5–3(–6) mm, velvety or villous adaxially; largest medial blade narrowly oblong, narrowly elliptic, oblanceolate, or obovate, (13–)20–50(–70) × 3–13 mm, 2.3–9 times as long as wide, margins strongly revolute, abaxial surface hairs gray throughout, adaxial slightly glossy, moderately densely tomentose; proximal blade margins entire. Catkins: staminate 6.5–13.5 × 5–10 mm, flowering branchlet 0–1 mm; pistillate 11–17.5 × 5.5–12 mm, flowering branchlet 0–1.5 mm; floral bract 0.8–1.4 mm. Staminate flowers: filaments glabrous or hairy basally. Pistillate flowers: ovary pyriform; ovules 6 per ovary; stigmas 0.2–0.24–0.32 mm. Capsules 5–9 mm.


Phenology: Flowering early Mar-late May.
Habitat: Moist limestone and serpentine barrens, open heath balds, open pine woods, moist prairies, swampy areas in open deciduous woods, stream banks
Elevation: 60-1600 m

Distribution

V7 138-distribution-map.gif

Ark., Conn., Del., D.C., Ga., Ill., Ind., Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Okla., Pa., R.I., S.C., Tenn., Va., W.Va., Wis.

Discussion

Hybrids:

Although variety tristis is reported to hybridize with Salix eriocephala, S. humilis var. humilis, and S. petiolaris (G. W. Argus 1986), hybrids have not been confirmed.

Selected References

None.

Lower Taxa

None.
George W. Argus +
(Aiton) Griggs +
Salix tristis +
Dwarf prairie willow +
Ark. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Va. +, W.Va. +  and Wis. +
60-1600 m +
Moist limestone and serpentine barrens, open heath balds, open pine woods, moist prairies, swampy areas in open deciduous woods, stream banks +
Flowering early Mar-late May. +
Proc. Ohio Acad. Sci. +
Weedy +, Illustrated +  and Endemic +
Salix humilis var. microphylla +
Salix humilis var. tristis +
Salix humilis +
variety +