Eriogonum longifolium var. harperi

(Goodman) Reveal

Sida 3: 197. 1968.

Common names: Harper’s wild buckwheat
Endemic
Basionym: Eriogonum harperi Goodman Bull. Torrey Bot. Club 74: 329, figs. 1–3. 1947
Treatment appears in FNA Volume 5. Treatment on page 330. Mentioned on page 329.

Plants 10–18 dm, thinly tomentose. Leaves: basal leaf-blade 10–15 × 1.5–2.5 cm, tomentose abaxially, sparsely floccose or glabrous adaxially. Peduncles 0.3–0.8 cm. Involucres turbinate, 3–3.5 × 1.5–2.5 mm. Flowers 5–7 mm, including 0.5–1 (–1.2) mm stipelike base. Achenes 4–4.5 mm. 2n = 40.


Phenology: Flowering Jun–Sep.
Habitat: Sandy to gravelly, often calcareous flats, bluffs, outcrops, and slopes, oak and conifer woodlands
Elevation: 100-300 m

Discussion

Variety harperi is known only from scattered populations in Alabama (Colbert and Franklin counties), Kentucky (Christian County), and Tennessee (DeKalb, Putnam, Smith, and Wilson counties). The Kentucky record is based on a report indicating that the plant had been extirpated there.

Selected References

None.

Lower Taxa

None.

"/2" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

included +  and exserted +
3-gonous +
usually red +  and cream or yellow +
oblong +  and ellipsoid or oval +
James L. Reveal +
(Goodman) Reveal +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
glabrous +, floccose +  and tomentose +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
deciduous +  and persistent +
stipelike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Eriogonum harperi +
awn-tipped +  and simple +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (20 cm200 mm <br />0.2 m <br />) +
glabrous +, floccose +  and tomentose +
oblanceolate;oblong +
0.3 cm3 mm <br />0.003 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not awn-tipped +
glandular +, pubescent +  and glabrous +
triangular +  and scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
grooved +, not disarticulating +  and dichotomous +
not brittle +
scabrellous +
spreading +  and erect +
whorled +, opposite +  and alternate +
Harper’s wild buckwheat +
Ala. +, Ky. +  and Tenn. +
100-300 m +
unisexual +, , +  and bisexual +
attenuate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
decumbent to erect +  and prostrate +
slender;stout +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Sandy to gravelly, often calcareous flats, bluffs, outcrops, and slopes, oak and conifer woodlands +
open +  and cymose +
capitate +  and subcapitate +
50 cm500 mm <br />0.5 m <br /> (80 cm800 mm <br />0.8 m <br />) +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
connate +  and free +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
nonmembranous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
in whorls +, opposite +, alternate +  and rosulate +
persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
glabrous;tomentose +
erect to deflexed +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
silvery-tomentose +
cylindric +  and urceolate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Flowering Jun–Sep. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
persistent +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
decumbent to erect +  and prostrate +
tomentose +  and floccose or glabrous +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading or recurved +
spreading;erect +
chambered +  and solid +
slender +  and stout +
Eriogonum longifolium var. harperi +
Eriogonum longifolium +
variety +
emarginate +  and entire +
1/4 +  and 1/3 +
lanceolate +  and narrowly elliptic +
coriaceous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
glabrous +  and tomentose +
annual +, biennial +  and perennial +
synoecious +, monocarpic +, polycarpic +  and , +
3 +, 2 +  and 1 +