Difference between revisions of "Erigeron tenellus"

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 288. 1836.

Common names: Rio Grande fleabane
Treatment appears in FNA Volume 20. Treatment on page 319. Mentioned on page 263.
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V20_714.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_714.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Erigeron
 
|genus=Erigeron

Revision as of 15:26, 18 September 2019

Annuals, 15–40 cm; slenderly taprooted. Stems initially erect, later ascending to decumbent (herbaceous), proximally spreading- to deflexed-villous, closely to loosely strigose on distal 1/3–1/2, eglandular. Leaves basal (often drying translucent, often withering by flowering) and cauline; basal (thin) blades oblanceolate to obovate or spatulate, 10–80(–140) × 5–34 mm, cauline slightly or gradually reduced to distal 1/3 of stems (bases clasping), margins usually with 1–4 pairs of teeth or lobes, sometimes entire, faces sparsely short-hirsute to hirsuto-villous, eglandular. Heads (1–)3–10(–20) in diffuse arrays (branches from distal 2/3). Involucres 2.5–3 × 5–10 mm. Phyllaries in 2–4 series, hirsute to sparsely villous, minutely glandular. Ray florets 95–160(–250); corollas white to bluish, 2.5–4 mm, laminae not coiling or reflexing. Disc corollas 1.7–2 mm. Cypselae 0.6–0.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 10–13(–15) bristles. 2n = 18.


Phenology: Flowering Feb–May.
Habitat: Brushlands, palm woods, roadsides, disturbed sites
Elevation: 0–50 m

Distribution

V20-714-distribution-map.gif

Tex., Mexico (Nuevo León, Tamaulipas).

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron tenellus"
Guy L. Nesom +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
Rio Grande fleabane +
Tex. +, Mexico (Nuevo León +  and Tamaulipas). +
0–50 m +
Brushlands, palm woods, roadsides, disturbed sites +
Flowering Feb–May. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Achaetogeron +  and Trimorpha +
Erigeron tenellus +
Erigeron +
species +