bio.wikisort.org - Plant

Achillea erba-rotta, common name simple leaved milfoil, is a perennial flowering plant of the genus Achillea, belonging to the sunflower family.[2]

Achillea erba-rotta
Flowers of Achillea erba-rotta
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Achillea
Species:	A. erba-rotta
Binomial name
Achillea erba-rotta All.
Synonyms[1]
Achillea cuneifolia Lam. Achillea haussknechtiana Asch. Achillea herba-rota All. Achillea herba-rotta Vill. Achillea morisiana Rchb. Ptarmica erba-rotta (All.) DC.

Description

Achillea erba-rotta is a polymorphic species, as its physical characteristics clearly vary depending on the variety. The biological form is chamaephyte suffruticose,[3] as these plants have perennating buds borne close to the ground and are woody in the lower part of the stem, with herbaceous yearly branches. The primary root is a rhizome.

This plant reaches on average 12–18 centimetres (4.7–7.1 in) in height.[3] The stems are woody and creeping, almost glabrous or with short hair and with erect flowering branches. Leaves of sterile branches are lanceolate-spatulate, 5–7 mm wide and 26–30 mm long, with 4-7 teeth on each side.[3] Cauline leaves are alternate, sessile, toothed and progressively linear, about 2–3 mm wide and 11–22 mm long.[3] Flowers are hermaphroditic and pentamerous, arranged in corymbs with many heads, about 3 mm in diameter, with rounded ligules.[3] The flowering period extends from July through August. The fruit is a flattened achene without pappus.

Distribution

This typical plant of Alps is present in Italy, France, Switzerland and Austria.[3][4]

Habitat

It prefers a sunny location in alpine pastures and rocky areas, at an altitude of 2,000–2,800 metres (6,600–9,200 ft) above sea level.[3]

Subspecies

accepted by The Plant List[5]

• Achillea erba-rotta subsp. erba-rotta
• Achillea erba-rotta subsp. moschata (Wulfen) Vacc.
• Achillea erba-rotta subsp. rupestris (Porta) I.Richardson

Hybrids

• Achillea × obscura Nees

References

• Tutin, T.G. et al. – Flora Europaea, second edition – 1993

External links

• Biolib
• Acta Plantarum

На других языках

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- [en] Achillea erba-rotta

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[it] Achillea herba-rota

L'erba rota, o achillea erba-rotta (Achillea herba-rota All., 1773), è una pianta aromatica del genere Achillea tipica dell'arco alpino occidentale; si trova in Italia e in Francia.

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