Rubus pungens var. oldhamii ("Sanagiichigo")

Japanese name: サナギイチゴ （猿投苺）
Scientific name: Rubus pungens var. oldhamii

[Overview]
A small deciduous shrub found at the edges of deciduous forests and in sunny places.
The stems are slender, hairy at first but later hairless, and extend like vines, leaning on other plants.
The stems have sparse, slender, downward-pointing hooked prickles.
The leaves are alternate and odd-pinnately compound, consisting of 5–7 leaflets.
The terminal leaflet is rhombic-ovate, 2–4 cm long and 1–3 cm wide, often shallowly 3-lobed, with deeply notched double teeth on the margin.
The petiole has sparse prickles.
At the branch tips, 1–3 white or pale pink five-petaled flowers, 1.5–2 cm across, are borne.
The petals are obovate to spoon-shaped.
The hypanthium is shallowly bell-shaped.
The sepals are lanceolate with pointed tips and have white hairs on both surfaces; on the outside, together with the hypanthium, they have glandular hairs and prickles.
The flower stalk is 3–5 cm long and has soft hairs and prickles.
The fruit is a spherical aggregate fruit about 1 cm across, ripening red and covered with soft hairs.

[Notes]
The Japanese name is said to be a corruption of Sanage-ichigo, a name given because the plant was collected on Mt. Sanageyama in Aichi.

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