Sunday, September 29, 2024

Plant Story--Hedge False Bindweed, Calystegia sepium

In the regions where I have lived in the last 50 years, Colorado, Nebraska, I knew only two bindweeds, the very common field bindweed, Convolvulus arvensis (blog), and the much rarer, hedge bindweed, perhaps better called hege false bindweed Calystegia sepium, both with white tubular flowers open in the mornings. Hedge false bindweed is much bigger--and so quite beautiful--and although I saw it climbing through roadside shrubs, it didn't seem particularly weedy. 

hedge false bindweed, Calystegia sepium
hedge false bindweed, Calystegia sepium

Reading about hedge false bindweed, though, I find it is immensely complicated.

Monday, September 23, 2024

Travel Story--The Burren, Limestone Outcrops in Ireland

In western Ireland, there is a region of limestone outcrops, called the Burren. Great expanses of limestone rock lie at the surface. You can see them as the hills in the distance in the photo. Plants grow in crevasses, but nothing grows on rock, so it has never been cropland.  

The Burren, Ireland
The Burren on the hills in the distance

Monday, September 16, 2024

Plant Story--The Beautiful Roselle, Hibiscus sabdariffa

The roselle is a small hibiscus, Hibiscus sabdariffa, (cotton family, Malvaceae) that is grown as food, but pretty enough to be grown as an ornamental. Also known as Jamaican sorrel, roselle is a tropical perennial which can be grown outside the tropics as an annual. The stems are red, the leaves green, the veins in the leaf red. The flowers are white or yellow with dark centers. Around each flower are a series of fleshy red sepals and another circle of red bracts that look very similar. The sepals are gathered and eaten, sometimes under the name "hibiscus flowers."

roselle, Hibiscus sabdariffa
roselle, Hibiscus sabdariffa

Sunday, September 8, 2024

Plant Story--Meadowsweet, Queen-of-the-Meadow, Filipendula ulmaria

Meadowsweet, Filipendula ulmaria, in the rose family, Rosaceae, is a lovely and conspicuous European wildflower, now naturalized in the eastern United States (known there as "queen-of-the-meadow"). 

meadowsweet, Filipendula ulmaria
meadowsweet, Filipendula ulmaria

Sunday, September 1, 2024

Western Nebraskan Plants Easily Seen At Cedar Point Biological Station

Recently at the University of Nebraska's Biological Station, Cedar Point, at the Station's 50th anniversary, I failed to take very many photos of buildings and people. Here are a few of the photos of plants I took, instead.

buffalo burr, Solanum rostratum
buffalo burr, Solanum rostratum

For example, buffalo burr (Solanum rostratum, tomato family Solanaceae). Native to North America, it gets its name from its presence in areas denuded of other plants by bison, and since then, by cattle.This big-flowered plant has impressive spines (look next to uppermost flower in the photo above). The burs will stick to animal hair, dispersing it.  It is also rich in alkaloids that deter insects. It is one of the American plants that has gone around the world as a weed. Okay, it is hated around the world, but it is nevertheless a plant success story. Look and don't touch.