Erodium

and California

This site was created and is maintained by Benjamin Coultrup.

Photos all ©Benjamin Coultrup unless otherwise indicated, 1984-2021.

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Erodium

Classification

Species

Clade I, Subclade 1

Subgenus Erodium

 - Section Erodium

 - Section Oxyrynchia

 - stephanianum group

Clade I, Subclade 2

Subgenus Barbata

 - Section  Absinthoidea

Clade II, Subclade 3

 - cygnorum group

Clade II, Subclade 4

 - botrys group

 - Section Cicutaria,

   - Subsection Cicutaria

   - Subsection Acaulia

 - Section Malacoidea

   - Subsection Reichardia

   - Subsection Malacoidea

 - Section Foetida

California

Literature and References

Notes

Erodium chium (L)Willd.


Caulescent annual herb, 10-50cm with fine branching roots. Stems ascending, with retrorse eglandular hairs and a few glandular hairs.


Leaves triangular-ovate, pinnatifid to pinnatipartite ± cordate; principal segments 3-5, with sinuses separating them, irregularly dentate; basal leaves with lamina  2.5-5 x 2-6 cm, petiole 4.5-7 cm; stipules 1.5-10 mm, triangular, papery, whitish.


Inflorescence: Lateral umbels of 5-9 flowers; bracts 4-9, 2-3.5mm ± joined at  the base, with glandular hairs on the lower surface, papery, brown or white; sepals 3.5-6mm prominantly nerved, with abundant ± patent eglandular hairs and small glands on the lower surface and with a papery edge; mucro 0.7-2 mm; petals equal, 4.5-7.5 mm pink or purplish (or sometimes white), unmarked; nectaries green to brown; staminodes whitish-pink, with hairs on outer edge; stamens filaments pink, widened and hairy at base; anthers purple-bluish; pollen yellow; stigmas  rose to purple. Flowers March to June.




Fruit: Mericarp 3-5mm’ light brown; foveole without furrows; awn bare and without turns for the half next to the seed.; beak 30-50(-70)mm, rapier like. 2n=20


Habitat: endemic to Europe: Portugal, Mediterranean Basin from Spain to Greece and Egypt, Canaries, Madeira; dry open places, fields, roadsides, sand dunes, often coastal but also inland, on mainly basic sandy soils.

Erodium chium - on the sea wall, Cabanas, Portugal; 31/12/1994

Erodium chium - on the sea wall, Cabanas, Portugal; 31/12/1994