Erigeron foliosus

Erigeron foliosus
At Lake Poway, in San Diego County
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Astereae
Genus:	Erigeron
Species:	E. foliosus
Binomial name
Erigeron foliosus Nutt.
Synonyms[1]
Synonymy Erigeron foliosum Nutt.[2][3] Cineraria canescens Spreng. Diplopappus occidentalis Hook. & Arn. Erigeron brazoensis Buckley Erigeron canescens Hook. & Arn. Erigeron decumbens Benth. 1849 not Nutt. 1840 Erigeron douglasii Torr. & A.Gray Erigeron fragilis Greene Erigeron nuttallii A.Heller Erigeron quercifolius DC. Erigeron setchellii Jeps. Erigeron stenophyllus Nutt. 1847 not Hook. & Arn. 1836 Erigeron striatus Greene Erigeron tenuissimus Greene Erigeron confinis Howell, syn of var. confinis Erigeron blasdalei Greene, syn of var. hartwegii Erigeron hartwegii Greene, syn of var. hartwegii Erigeron mendocinus Greene, syn of var. mendocinus

Erigeron foliosus, known by the common names leafy daisy and leafy fleabane, is a North American species of flowering plants in the daisy family.^[4][5]

Erigeron foliosus is native to western North America from Oregon, through California, into Baja California. It can be found in many habitats, including chaparral, oak woodlands, and rocky talus. ^[6][4][5]

Description

In general, Erigeron foliosus is an erect, clumping and branching perennial daisy growing from woody roots to heights of anywhere between 20 centimetres (7.9 in) and 1 metre (3.3 ft).

Unlike some other fleabanes, it has leaves evenly spaced all over the stem. They may be thready or wide and flat, and are between 1–7 centimetres (0.39–2.76 in) long.^[5]

Atop each branch of the leafy stem is an inflorescence of one to several flower heads, each one to 1.5 centimetres (0.59 in) wide. The head has a center of golden yellow disc florets surrounded by a fringe of up to 60 pale to medium purple ray florets.^[5]

Varieties

The recognized^[2][4][5] varieties of Erigeron foliosus include:

• Erigeron foliosus var. confinis (Howell) Jeps. — endemic to Klamath Mountains in northwestern California + southwestern Oregon^[7]
• Erigeron foliosus var. foliosus — California (from Amador + San Mateo Counties south to San Diego County), Baja California^[8]
• Erigeron foliosus var. franciscensis G.L.Nesom — endemic to San Francisco Bay Area^[9]
• Erigeron foliosus var. hartwegii (Greene) Jeps. — California, Oregon^[10]
• Erigeron foliosus var. mendocinus (Greene) G.L.Nesom — Mendocino erigeron, Mendocino fleabane; Mendocino and Del Norte County, California^[11]

References

1. The Plant List, Erigeron foliosus Nutt.
2. Tropicos, Erigeron foliosus Nutt.
3. Nuttall, Thomas. 1840. Transactions of the American Philosophical Society, new series 7: 309
4. CalFlora taxon report, University of California: Erigeron foliosus (leafy fleabane)
5. Flora of North America, Erigeron foliosus Nuttall, Leafy fleabane
6. Jepson . accessed 1.14.2014
7. CalFlora Database: Erigeron foliosus var. confinis.
8. CalFlora Database: Erigeron foliosus var. foliosus
9. CalFlora Database: Erigeron foliosus var. franciscensis
10. CalFlora Database: Erigeron foliosus var. hartwegii
11. CalFlora Database: Erigeron foliosus var. mendocinus

External links

• Jepson Manual Treatment of Erigeron foliosus
• United States Department of Agriculture Plants Profile: Erigeron foliosus
• Erigeron foliosus — Calphotos Photo gallery, University of California