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Botany Photo of the Day
In science, beauty. In beauty, science. Daily.

Pyrola rotundifolia

Pyrola rotundifolia

Thanks to Ruth for today's write-up:

We have seen a lot of rather masculine and more burly plants lately. Here is something delicate and feminine for a change. The round-leafed wintergreen, Pyrola rotundifolia, shown here is a member of the Ericaceae along with blueberries, azaleas and rhododendrons.

The showy and curious protrusion from this flower is the gynoecium (female reproductive organs). The stigma (pollen-receptive surface) is at the tip and the style is the remaining part of the tube reaching all the way to the swollen green ovary at the centre of the flower. This enlarged pistil plays the important role of attracting pollinators, specifically flies and bees. The androecium (male reproductive organs) consists of the many strands surrounding the gynoecium. For detailed illustrations of the floral parts, see Wikimedia: Pyrola rotundifolia. Pyrola rotundifolia grows in boggy, shady and wet meadow-like conditions. It is also an inhabitant of montane environments. Its native range stretches across Eurasia, including Greenland. A close relative, Pyrola americana or Pyrola rotundifolia var. americana depending on what source you read, can be found in northeastern North America.

I think it's also important to note the differences between the genus Pyrola and other plants also commonly known as wintergreens, some members of the genus Gaultheria. Members of the genera Pyrola, Orthilia, Moneses and Chimaphila are all herbaceous plants named "wintergreens" because they stay green year-round. Gaultheria is a genus of evergreen woody shrubs, with oil of wintergreen (methyl salicylate) in their leaves (see medicinal uses of Gaultheria procumbens). All of these genera are in the Ericaceae.

We thank Marcella2@Flickr for today's photo via the BPotD Flickr pool.

5 Comments

Karen Newbern commented:

Readers might want to know that the flowers are only about 1/2" across. Looks slightly obscene up close, doesn't it?

Eric in SF commented:

Ruth - thanks for the tip outlining the differences between this and the oil of wintergreen producing species.

elizabeth a airhart commented:

thank you ruth ever so lovely
i have been searing on the web
skye flora uk flora images co uk
the forest newborough with
map google i guess calphotos
etc this has an almond odor ?
and i used live in the noth east
of my country usa a morning of travel
fairys in the garden indeed

Eva commented:

Feminine?! Looks quite masculine to me.

Lovely photo and interesting writing, as always.

Donald DeLano commented:

I have been an avid reader for awhile and enjoy to the utmost your comments. I myself could never make up my mind as to the direction my studies should talk and ended up with degrees is Horticulture, Botany, Pathology and Taxonomy. In the past as an instructor in the Horticulture side of the plant world, I always stressed to my students the importance of learning as much about a plant as possible, not just the bare minimium to get the grade. As they have gone into the field in their selected areas, more and more of them have contacted me over the years after they have realized the importance of those words. Presently, working in the Horticulture field, I still crave the unknown. I have forwarded this site to numerous past studends/friends and all have aggreeded that it is a jewel. Thanks for your time and efforts.

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