Monday, 1 April 2024

Teucrium scorodonia 林地鼠尾草、林石蚕

Common name: Wood Sage
Scientific name: Teucrium scorodonia 林地鼠尾草、林石蚕
Genus: Teucrium 香科科屬
Family: Lamiaceae or Labiatae 唇形科, mint or deadnettle or sage family

Remarks:

Origin: native


Date: 19th July

269 An erect, pubescent, branched, rhizomatous perennial, can reach up to 30cm.

234 Growing towards the direction of the sun.


213

213_1 Hairy, square stem and leaf stalk. Leaves opposite.

212 Leaf of a plant in shady environment. Leaf 30-70mm, stalked, wrinkled.

228 Leaf of another plant in exposed environment.

214 Underside of the leaf.

214_1 Hairy along the veins.


214_2 Hairs on the upper surface of the leaf. (see the bottom of the photo above)

268 Flowers in terminal racemes.

270 Flowers pale yellowish green.

224 Lateral view showing the sepals and bracteoles (the small green leaf-like structures at the base of each individual flower).

226

273_1 Different stages of flower buds. The corolla tube will extend from the calyx tube with 5 teeth. (only 4 teeth could be seen from the flower bud at the top left of the photo above, the remaining tooth is at the back of these calyx tube)

224_1 Lateral view showing flowers are arranged in pairs. Bracteoles are shorter than flowers. Calyx with 5 teeth, 1 large above and 4 smaller at bottom. Petals are open with a big lower lip, side of lip are folded up. 2-lobed stigma could be clearly seen from the lower flower. 

221_1 Calyx of 5 teeth. The shape of the petal and lower lip could be seen clearly in the above photo. There are 4 stamens, 2 longer are located upper and 2 shorter are lower.

225_1 4 stamens and a 2-lobed stigma.

226_1 4 stamens with orange anthers. The shape of the lower lip could be clearly seen above, with sides folded up.

229_1 Front view of the flower.

271_1 Front view of the flowers. There are 4 lobes of the petals above the lower lip. 2 longer and 2 shorter stamens with orange anthers could be clearly seen.

227 A pair of bracts (leaf-like structure) at the base of the inflorescence.

210 Fruiting now.

210_1 Only calyx tube with 5 teeth are left. It could be clearly seen that 1 large teeth above and 4 smaller teeth below the calyx tube.

215_1 4 spherical seeds are forming inside the calyx tube.

211_1 The inflorescence is upside down in the above photo, so the bigger single teeth is below and 4 smaller teeth are above the calyx tube now.

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