How to identify Geranium yeoi (Greater Herb-Robert)

This project collects observations of Geranium yeoi (Greater Herb-Robert) in California for the purpose of facilitating identification and preventing misidentification of this species in iNaturalist.


Vouchers Needed: This species is not yet recognized in Jepson eFlora or Calflora. If you're a botanist and find this plant in the wild, please submit a voucher specimen so that its presence in California can be documented. See this Facebook posting for more info: https://www.facebook.com/groups/Calinvasiveplants/posts/2828241484118285


Photo tips:

  • It’s important to get a picture of the entire plant.
  • It's also helpful to get close-up pictures of the face of the flowers, sepals, leaves, and fruits, if present.
  • If there are multiple plants in the picture, it’s helpful to crop your photo to focus on the plant of interest.

How to identify Geranium yeoi:

  • G. yeoi is similar to G. robertianum, but the flower is about 3x as large and the pattern is slightly different. It is often a brighter pink and the stripes on the petals are less distinct, making the darker shaded area more obvious.
  • G. yeoi tends to form a clump of leaves, almost a low shrub. The leaves are very substantial and approach the form of other Mediterranean species such as G. palmatum and even G. maderense.
  • G. yeoi grows side-by-side with G. reuteri, with which it also appears to hybridize.

G-yeoi-for-journal

Similar Species:

  • Geranium robertianum (Herb Robert)
  • Geranium reuteri (Canary Herb-Robert)
  • Geranium maderense (Giant Herb-Robert)

3-species
See: https://www.inaturalist.org/observations/94162488

References:

Posted on January 17, 2022 08:09 PM by truthseqr truthseqr

Comments

No comments yet.

Add a Comment

Sign In or Sign Up to add comments