familyPolygonaceae
subfamilyPolygonaceae subfam. Polygonoideae
genusPolygonum
sectionPolygonum sect. Duravia
speciesPolygonum polygaloides
subspeciesPolygonum polygaloides subsp. esotericum
Polygonum polygaloides subsp. esotericum
Madroño 31: 251. 1984.
Common names: Modoc County knotweed
Endemic
Basionym: Polygonum esotericum L. C. Wheeler Rhodora 40: 310, fig. 1. 1938
Stems 5–12 cm. Inflorescences continuous from bases of branches or stems, narrowly cylindric, 2–10 × 5–7 mm; bracts appressed, elliptic-lanceolate, 4–8 mm, rigid, margins flat, green, if white then scarious portion 0.1–0.2 mm wide; lateral and midveins prominent adaxially. Flowers: perianth 2.1–2.9 mm; tube 29–40% of perianth length; tepals white or pink; perianth-tube and base of tepals smooth; stamens 5–8. Achenes dark-brown, lanceolate, 2–2.5 mm, reticulately ridged to almost smooth, dull.
Phenology: Flowering Jun–Aug.
Habitat: Vernal pools, seasonally wet places, desert scrub, pinyon and juniper woodlands
Elevation: 1400-1600 m
Discussion
Selected References
None.
Lower Taxa
None.
"/2" is not declared as a valid unit of measurement for this property.
... more about "Polygonum polygaloides subsp. esotericum"
dark-brown +
glabrous +
dull +
homocarpic +
2mm;2.5mm +
dehiscing +
acute;acuminate +
caducous +
distal +
not stipelike +
3-veined +
narrowly linear;subround +
coriaceous +
appressed +
connate +
absent +
2;10 +
elliptic-lanceolate +
rigid +
connate +
free +
aerial +
woody +
Modoc County knotweed +
1-3-flowered +
crowded +
reduced +
silvery +
persistent +
lacerate +
curved +
nuclear +
abundant +
glabrous +
closed +
1;7 +
bisexual +
aerial +
fistulose +
homocarpic +
continuous +
capitate +
cluster +
axillary +
cylindric +
length +
enclosed +
tubular +
nonmembranous +
inconspicuous +
prominent +
articulated +
distributed +
deciduous +
cauline +
awn-tipped +
glaucous +
not rugulose +
papillose-denticulate +
revolute +
thickened +
swollen +
4-8-veined +
disintegrating +
absent +
glabrous +
chartaceous +
2-lobed +
somewhat larger +
equaling +
articulate +
erect +
absent +
accrescent +
awnless +
cluster +
spreading;erect +
absent +
unwinged +
greenish white;pink +
persistent +
glabrous +
nonaccrescent +
articulated +
absent +
(2-)3(-4)-carpellate +
scarious +
not pruinose +
cylindric +
Madroño +
1984 +
absent +
obscure +
longitudinal +
tuberous +
not conspicuous +
ringlike +
longitudinal +
Endemic +
recurved +
absent +
green +
scandent +
prostrate +
erect +
glabrous +
papillous-scabridulous +
4-gonous +
peltate +
capitate +
foliaceous +
absent +
chartaceous +
spreading +
spreading;erect +
solid +
Polygonum polygaloides subsp. esotericum +
Polygonum polygaloides +
subspecies +
absent +
petaloid +
entire +
overlapping +
dimorphic +
connate +
coriaceous +
persistent +
membranous +
glandular-punctate +
developing +
raised +
inconspicuous +
homophyllous +
not glaucous +
homocarpic +
not succulent +
annual +
heterocarpic +