Checklist
Thalictrum L.
EOL Text
Herbs. Leaves spirally arranged, compound with sheathing bases. Inflorescence a terminal panicle. Flowers bisexual, or some male only, actinomorphic. Perianth segments 3-5, imbricate in bud, green or petaloid. Petals 0. Stamens often with conspicuous anthers. Carpels 1-numerous, 1-ovulate. Achenes with stigma persistent, forming a long beak (in ours).
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=583 |
Foodplant / gall
larva of Ametrodiplosis thalictricola causes gall of fruit of Thalictrum
In Great Britain and/or Ireland:
Foodplant / spot causer
amphigenous colony of Haplobasidion dematiaceous anamorph of Haplobasidion thalictri causes spots on live leaf of Thalictrum
Foodplant / open feeder
adult of Longitarsus brunneus grazes on leaf of Thalictrum
Foodplant / miner
larva of Phytomyza minuscula mines leaf of Thalictrum
Foodplant / pathogen
Pratylenchus infects and damages root of Thalictrum
Other: major host/prey
Foodplant / parasite
pycnium of Puccinia recondita parasitises live Thalictrum
Foodplant / gall
Urocystis sorosporioides causes gall of leaf of Thalictrum
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | BioImages, BioImages - the Virtual Fieldguide (UK) |
Source | http://www.bioimages.org.uk/html/Thalictrum.htm |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:330
Specimens with Sequences:396
Specimens with Barcodes:244
Species:98
Species With Barcodes:98
Public Records:256
Public Species:94
Public BINs:0
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
Wikimedia Commons has media related to Thalictrum. |
Thalictrum is a genus of 120-200 species of herbaceous perennial flowering plants in the Ranunculaceae (buttercup) family native mostly to temperate regions.[1]
Thalictrum is a taxonomically difficult genus with poorly understood species boundaries; it is in need of further taxonomic and field research for clarification.
Despite their common name of "meadow-rue", Thalictrum species are unrelated to the true rue (family Rutaceae), but resemble its members in having the petiole twice or thrice divided.[2]
Contents
Habitat[edit]
Meadow-rues are usually found in shaded or damp locations, with a sub-cosmopolitan range throughout most of the Northern Hemisphere and also south to southern Africa and tropical South America, but absent from Australasia. It is most common in temperate regions of the world, twenty-two species are found in North America.
Leaves and flowers[edit]
The leaves are alternate, bipinnately compound, commonly glaucous blue-green in colour.
The flowers are small and apetalous (no petals), but have numerous long stamens, often brightly white, yellow, pink or pale purple, and are produced in conspicuous dense inflorescences. In some species (e.g. T. chelidonii, T. tuberosum), the sepals are large, brightly coloured and petal-like, but in most they are small and fall when the flower opens or soon after.
Chemical Constituents[edit]
Thalictrum species have been extensively studied by chemists. Typical natural products found in this genus are benzylisoquinoline alkaloids such as magnoflorine and the structurally related alkaloid berberine.[3]
Ecology[edit]
Thalictrum species are used as food plants by the larvae of some Lepidoptera species including the Setaceous Hebrew Character moth.[citation needed]
Selected species[edit]
- Thalictrum alpinum – alpine meadow-rue
- Thalictrum aquilegiifolium – greater meadow-rue
- Thalictrum calabricum
- Thalictrum chelidonii
- Thalictrum clavatum – mountain meadow-rue
- Thalictrum cooleyi – Cooley's meadow-rue
- Thalictrum delavayi – Chinese meadow-rue
- Thalictrum diffusiflorum
- Thalictrum dioicum – early meadow-rue
- Thalictrum dipterocarpum
- Thalictrum fendleri – Fendler's meadow-rue
- Thalictrum flavum – yellow or common meadow-rue
- Thalictrum foeniculaceum
- Thalictrum foetidum
- Thalictrum foliolosum
- Thalictrum glaucum
- Thalictrum heliophilum
- Thalictrum ichangense
- Thalictrum javanicum
- Thalictrum kiusianum
- Thalictrum lucidum
- Thalictrum macrostylum – piedmont meadow-rue, small-leaved meadow-rue
- Thalictrum minus – lesser meadow-rue
- Thalictrum morrisonii
- Thalictrum occidentale – western meadow-rue
- Thalictrum orientale
- Thalictrum reniforme
- Thalictrum petaloideum
- Thalictrum polygamum – tall meadow-rue (syn. T. pubescens)
- Thalictrum revolutum – waxyleaf meadow-rue
- Thalictrum rochebrunianum
- Thalictrum simplex – small meadow-rue
- Thalictrum sparsiflorum – fewflower meadow-rue
- Thalictrum thalictroides – rue-anemone (syn. Anemonella thalictroides)
- Thalictrum tuberosum
- Thalictrum venulosum – early meadow-rue, veined meadow-rue
References[edit]
- ^ Flora of North America: Thalictrum.
- ^ Meadow Rue. The Century Dictionary
- ^ J. J. Willaman and H.-L. Liu, Lloydia (Supplement) (1970) 33 pp. 182-183.
License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Thalictrum&oldid=644427275 |