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Things I Get To I.D. At Work

@drhoz / drhoz.tumblr.com

Assorted insects, spiders, scorpions, ticks, and other invertebrates from around Perth, Western Australia, that I am asked to identify, or stumble across myself, while I'm busy being a termite technician. More recently I've added plants and vertebrates, and described species seen on field trips with the WA Naturalists Club, or on my own rare holidays.

#3963 - Bergenia crassifolia

'thick-leaved Bergenia', after German physician and botanist Karl August von Bergen (1704–1759).

First described as Saxifraga crassifolia by Carl Linnaeus in 1753, and later moved to the genus Bergenia by Karl Fritsch in 1889. AKA Bergenia cordifolia, Saxifraga cordifolia, heart-leaved bergenia, heartleaf bergenialeather bergenia, winter-blooming bergenia, elephant-ears, elephant's earsKorean elephant-earbadanpigsqueak (from the noise the leaves make when rubbed together), Siberian tea, and Mongolian tea.

A source of tannins, and a tea substitute in Siberia, Altay, and Mongolia, used for folk medicine in Russia, and grown as an ornamental over a much wider area than its original range - Central Asia.

The flowers are pink.

Oban, Rakiura Stewart Island, Aotearoa New Zealand.

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Pearlwort: How to Deal With This Invasive Plant

Pearlwort: How to Deal With This Invasive Plant

Flowering plants are a vital part of any garden. Not only do they look pretty and stunning when in full bloom, but they also attract bees and other pollinators. However, there comes a time in every gardener’s life when they have to deal with an invasive plant. Not all weeds look like weeds. Some, such as pearlwort (Sagina procumbens), are actually quite pretty. But don’t let its delicate white…

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western trailing pearlwort (Sagina decumbens); little baby flowers

#3962 - Sagina procumbens - Procumbent Pearlwort

'fodder growing close to the ground'. Linnaeus choosing the name based on an old belief that pasture was best where this plant grows.

Native throughout much of Eurasia, and northwest Africa, but an introduced weed in many other areas. That introduction has been a particular problem in the subantarctic, where it has severely impacted the ecosystem on the Prince Edward Islands, south of Africa, and threatens to do the same on Gough Island, in the South Atlantic. Manually removing the plants, soil, and pouring boiling water on the soil was required to reduce the seedbank to something potentially manageable.

Oban, Rakiura Stewart Island, Aotearoa New Zealand.

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Blue Pigroot (Sisyrinchium micranthum). Family Iridaceae, order Asparagales.

Arkansas, USA. May 2026.

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庭石菖(にわぜきしょう)

Blue-eyed Grass (Sisyrinchium)

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Sisyrinchium ‘Biscutella’. RHS Chatsworth show, June 2018.

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Sisyrinchium striatum

Sisyrinchium is a genus in the Iris Family, best known in California for the diminutive Sisyrinchium bellum, commonly called “blue-eyed grass” - even though it is not a grass at all. The plant pictured above is the much taller yellow-flowered species from Argentina and Chile named Sisyrinchium striatum.

-Brian

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Lasioglossum pectorale on Sisyrinchium angustifolium / Rugose-Chested Sweat Bee on Narrowleaf Blue-Eyed Grass at the Sarah P. Duke Gardens at Duke University in Durham, NC

#3961 - Sisyrinchium micranthum - Blue Pigroot 

'Small-flowered shaggy goat-hair cloak' (the bulb is hairy)

First described by Spanish botanist Antonio José Cavanilles in 1788.

AKA Bermudiana bermudiana, iridifolia and micrantha, Marica iridifolia and micrantha, and Sisyrinchium brownii, dichroum, exile, fimbriatum, iridifolium, micranthemum and rosulatum, annual blue-eyed grass, fairy stars, and striped rush-leaf.

Native to Mexico, Central America, and South America and a weed everywhere else.

Oban, Rakiura Stewart Island, Aotearoa New Zealand.

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DE 2018 €0.15 Milkmaids (Cardamine pratensis) DE 2021 €0.80 Thunderstorm