Oxytheca perfoliata Torr. & A.Gray

Roundleaf oxytheca (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Oxytheca

Characteristics

Plants spreading, 0.6-2 × 0.5-4 dm. Stems glandular distally. Leaf blades spatulate to oblong or oblanceolate, 1-6 × 0.3-1.5 cm, margins ciliate, otherwise gla-brous. Inflorescences open to densely branched, 0.8-1.7 dm; bracts at first node 4-5, triangular to lanceolate, 2-10 × 0.5-4(-8) mm, with awn 0.5-1 mm, sparsely glandular, bracts at remaining nodes 3, forming an orbiculate to somewhat triangular perfoliate disk mostly 1-2.5 cm across, glabrous or glandular, with awn 1-3 mm, terminal bracts 0.5-2 × 0.1-0.4 mm, sometimes merely acerose, with awn 0.5-2 mm. Peduncles erect, stout, 0.3-0.8 mm at proximal nodes, sometimes absent. Involucres 2-5 mm, glabrous or sparsely glandular abaxially; teeth 4; awns reddish, 2-3 mm. Flowers 5-10; perianth white or yellowish green to pink, 1.5-2.5 mm, echinulate and sparsely glandular abaxially; tepals monomorphic, lanceolate to ovate; filaments 1-1.5 mm, papillate basally; anthers pink to red, oval, 0.2-0.5 mm. Achenes dark brown to maroon, 1.5-2 mm. 2n = 40.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Oxytheca perfoliata unspecified picture

Distribution

Oxytheca perfoliata world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:179497-2
WFO ID wfo-0001100868
COL ID 4BLDS
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Oxytheca perfoliata