Asarum wagneri

K. L. Lu & Mesler

Brittonia 35: 331. 1983.

Endemic
Synonyms: Asarum caudatum var. viridiflorum M. Peck
Treatment appears in FNA Volume 3.
Revision as of 07:39, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Rhizomes horizontal, ± deeply buried, internodes 0.5-2.1 cm. Leaves: petiole 3-15 cm, sparsely crisped-hirsute. Leaf-blade not variegate, broadly reniform to cordate-reniform, 3-8 × 4-11 cm, apex obtuse to rounded (broadly acute); surfaces abaxially sparsely hirsute, adaxially sparsely hirsute only along veins, marginal hairs mostly curved toward apex. Flowers erect or ascending; peduncle 0.8- calyx-tube subglobose to cylindric-urceolate or urceolate, externally light green, sparsely to moderately hirsute, internally white or light green, bordered and occasionally striped with purple, with purple hairs; distal portion of sepal spreading perpendicularly from base at anthesis, bent abruptly upward at midpoint, 8-20 mm, apex filiform-acuminate, abaxially white to pale green, sparsely villous to villous, adaxially white or light green, at least distally, bordered with purple and occasionally with purple band across base, puberulent with crisped purple-tipped hairs; pollen-sacs 1-2 mm, sterile tip of connective on inner stamens dark red, 0.25-1 mm, shorter than pollen-sacs.


Phenology: Flowering spring–summer (May–Jul).
Habitat: Understory of Abies forests and open boulder fields in Tsuga forests near timberline
Elevation: 1500-3200 m

Discussion

Asarum wagneri is endemic to the Cascade Range of pouthern Oregon (K. L. Lu and M. R. Mesler 1983).

Selected References

None.

Lower Taxa

None.

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... more about "Asarum wagneri"
light green +, white +, abaxially white +  and pale green +
puberulent +, sparsely villous +  and villous +
filiform-acuminate;obtuse;rounded +
Alan T. Whittemore +, Michael R. Mesler +  and Karen L. Lu +
K. L. Lu & Mesler +
merous +  and petaloid +
tubular +
enlarged +
fan--shaped +
1500-3200 m +
ascending +  and erect +
sessile +  and petiolate +
indehiscent +  and loculicidal +
Understory of Abies forests and open boulder fields in Tsuga forests near timberline +
purple-tipped +
crisped +
axillary +  and terminal +
with weak longitudinal ribs +  and smooth +
0.5 cm5 mm <br />0.005 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
broadly reniform;cordate-reniform +
leathery;membranous +
petiolate +  and simple +
2-ranked +  and alternate +
parietal +, axile +  and placentation +
crisped-hirsute +
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering spring–summer (May–Jul). +
4-6-carpellate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
purple +  and red +
distinct +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Asarum caudatum var. viridiflorum +
Asarum wagneri +
species +
0.025 cm0.25 mm <br />2.5e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
deciduous +  and perennial +