Clematis macropetala Ledeb.

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Clematis macropetala' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/clematis/clematis-macropetala/). Accessed 2020-02-23.

Genus

Glossary

glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
linear
Strap-shaped.
ovate
Egg-shaped; broadest towards the stem.
keel petal
(in the flowers of some legumes) The two front petals fused together to form a keel-like structure.
section
(sect.) Subdivision of a genus.
spathulate
Spatula-shaped.
style
Generally an elongated structure arising from the ovary bearing the stigma at its tip.
alternate
Attached singly along the axis not in pairs or whorls.

References

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Clematis macropetala' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/clematis/clematis-macropetala/). Accessed 2020-02-23.

A deciduous climber with slender angled stems, downy when young, more especially near the swollen joints. Leaves mostly bi-ternate, i.e., consisting of three main divisions, each having three leaflets – or nine in all; the whole leaf

3 to 6 in. long. Leaflets ovate to lance-shaped, pointed, rounded or tapered at the base, coarsely and irregularly toothed; 12 to 112 in. long, 14 to 34 in. wide; nearly or quite glabrous except at the junction of the slender leaf-stalks. Flowers 212 to 4 in. wide, produced from May or June onwards at the end of the shoots or at the joints, each on a slender stalk 3 in. or more long. Sepals four, blue or violet-blue; 114 to 2 in. long, 14 to 13 in. wide; pointed. The centre of each flower is filled with a large number of petal-like segments decreasing in size towards the middle, the outer ones narrow, elliptic, pointed, and violet-blue like the sepals, the innermost of linear shape and almost white; all clothed with down. Stamens numerous, anthers pale yellow. Seed-vessels terminated by a slender, feathered style, 112 in. long. Bot. Mag., t. 9142.

Native of the province of Kansu, China, and of Siberia; first introduced by Purdom (No. 149), to the Coombe Wood nursery where it flowered in July, 1912; afterwards by Reginald Farrer (No. 315) about 1914. This beautiful climber belongs to the Atragene section of Clematis. Previous to its introduction this group was represented in gardens by only two species – C. alpina and C. verticillaris. These species are distinguished by the crowd of petal-like organs (staminodes) coming between the stamens and sepals. C. macropetala was collected about 1742 by d’Incarville in the mountainous country north of Peking, and it was named and first described by Ledebour in 1829 from a plant found in Siberia. It is closely akin to C. alpina, but the sepals are narrower, the petal-like organs longer, narrower and pointed (those of C. alpina being shorter, spathulate and blunt). C. macropetala is also later-flowering.


'Maidwell Hall'

A selection with flowers of a purer blue.

'Markham's Pink'

Flowers rose-coloured, shaded with purple at the base.

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