geralds's picture

Giant geranium?

Observed: 8th July 2012 By: geralds
flower
leaf
overall form and habitat
leaf detail
Description:

Occurs in same place every year, so assumed to be perennial. Height to 2.5 meters, flowering in July.
Extremely thin, straggly appearance, with smaller leaves towards the top of the plant. Plants grow in clusters, but are not abundant. Flower diameter about 3 cm. Marly soil, ph = 8.0.

Identifications
Species interactions

No interactions present.

Comments

TimP's picture

Mallow?

Looks like a Malva sepecies to me. Not sure which one - Malva alcea, perhaps?

geralds's picture

Mallow?

Thanks for the previous comment. I agree it could be a Malva - but according to Wikipedia, Malva alcea grows to only 125cm. Also, alcea flowers appear to be larger, and grow in clusters: in my specimen, the flowers grow singly. The 5-lobed leaf shape is about right, though. Are there any giant Malvas?

Fenwickfield's picture

agree

I agree with Tim that it is Malva species some Mallows can grow over 3m in height

Fenwickfield

geralds's picture

Althaea cannabina

Thanks for the identification, lavateraguy: this one had really been bothering me! I'm pretty sure you are right - from all the photos I have managed to find, plus the fact that the location is Mediterranean, with a calcareous soil.