12/07/2020 ….. Helms in July

Esperance, Helms Arboretum, Western Australian orchids

What better way to spend an hour or so on a Sunday that to check out Helms Arboretum (Mud Map SE 35) for any orchids that may be flowering. Before the search though we stock up on energy by having a cooked breakfast at the Esperance Bird and Animal Park.

The first orchid found was the ever reliable Banded Greenhood (Pterostylis vittata) which occurs over a lengthy period (April to Sept) over a wide distribution (Perth to Balladonia). Fairly coastal east of Albany, whilst further inland it is replaced by either the Dark Banded Greenhood or recently named Mallee Banded Greenhood. In fact the distributions of these orchids overlap in places, as confirmed by finding a small Mallee Banded Greenhood (Pterostylis arbuscula) at Helms. These orchids are recorded as growing between Northampton and Eyre during the season June to September, over mainly inland locations.

Moving on to another section of the Arboretum we come across Snail orchids in varying stages of flowering. Naming Snail orchids is always difficult especially when some found in previous years at Helms have remained un-named. The pictures below I feel are of two different species. One is the common Hairy-stemmed snail orchid (Pterostylis setulosa) which flowers from June to September over a large range between Kalbarri and Balladonia. The other smaller snail orchid has, shorter lateral sepals, only 2 stem leaves, a rosette of quite rounded leaves plus does not have a hairy stem. It will remain un-named again this year.

Well not much happening at Helms this time. I trust we will visit again sometime this season and I look forward to a greater variety of orchids. Until next time!!!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s