Difference between revisions of "Aconogonon phytolaccifolium"

(Meisner ex Small) Small in P. A. Rydberg

in P. A. Rydberg, Fl. Rocky Mts., 1061. 1917.

Common names: Poke knotweed
Basionym: Polygonum phytolaccifolium Meisner ex Small
Treatment appears in FNA Volume 5. Treatment on page 599. Mentioned on page 598.
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|publication year=1917
 
|publication year=1917
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V5/V5_1218.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V5/V5_1218.xml
 
|subfamily=Polygonaceae subfam. Polygonoideae
 
|subfamily=Polygonaceae subfam. Polygonoideae
 
|genus=Aconogonon
 
|genus=Aconogonon

Revision as of 18:36, 18 September 2019

Plants (50–)70–150(–200) cm. Stems erect, glabrous or pubescent. Leaves: ocrea reddish brown, funnelform, 1–3 cm, margins oblique, glabrous or pubescent; petiole 5–20 mm; blade lanceolate to ovate-lanceolate, 5–15(–19) × 1.4–7.5 cm, not subcoriaceous, base rounded, margins entire, usually scabrous to ciliate, rarely glabrous, apex obtuse to acuminate, faces not glaucous, glabrous or densely pubescent. Inflorescences usually terminal, subterminal, and axillary, paniclelike; peduncle 0.5–12 cm, glabrous or pubescent. Pedicels 0.9–4 mm. Flowers 1–3 per ocreate fascicle, rarely some flowers with stamens poorly developed; perianth white to greenish white, 2.5–3.5 mm; tepals slightly dimorphic, ovate to obovate, apex obtuse; anthers yellow to pink. Achenes usually exserted, yellowish brown, not beaked distally, (3–)3.8–7 × 2.3–4.8 mm, shiny, faces concave.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Stems glabrescent or pubescent; leaf blade margins scabrous to ciliate Aconogonon phytolaccifolium var. phytolaccifolium
1 Stems glabrous; leaf blade margins glabrous Aconogonon phytolaccifolium var. glabrum