''Maackia'' is a genus of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
s in the
legume
A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock f ...
family,
. There are about 12 species, all native to eastern
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
, with six
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
.
[''Maackia''.]
Flora of China. The generic name honors the botanist
Richard Maack
Richard Otto Maack (also Richard Karlovic Maak, Russian: Ричард Карлович Маак; 4 September 1825 – 25 November 1886) was a 19th-century Russian naturalist, geographer, and anthropologist. He is most known for his explorat ...
.
They are
deciduous
In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, aft ...
tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...
s and
shrub
A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
s. The alternately arranged leaves are divided into leaflets. The
inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...
is a simple or compound
raceme
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...
of many flowers. Each flower has an inflated
calyx with five teeth. The white or greenish corolla has a reflexed standard petal and keel petals that are fused at the bases. The fruit is a wide or narrow, flattened legume pod containing one to five flat seeds.
[
]
Species
''Maackia'' comprises the following species:Maackia amurensis
''Maackia amurensis'', commonly known as the Amur maackia, is a species of tree in the family Fabaceae that can grow 15 metres (49 ft) tall. The species epithet and common names are from the Amur River region, where the tree originated; it o ...
'' Rupr.—Amur maackia
** var. ''amurensis'' Rupr.
** var. ''buergeri'' (Maxim.) C.K.Schneid.
* '' Maackia australis'' (Dunn) Takeda
* '' Maackia chekiangensis'' S.S. Chien
* ''Maackia ellipticocarpa'' Merr.
* ''Maackia fauriei'' (H. Lév.) Takeda
* '' Maackia floribunda'' (Miq.) Takeda
* '' Maackia hupehensis'' Takeda[Some sources give ''Maackia chinensis'' Takeda priority over ''Maackia hupehensis'' Takeda.]
* '' Maackia hwashanensis'' W.T. Wang ex C.W. Chang
* '' Maackia tashiroi'' (Yatabe) Makino
* '' Maackia tenuifolia'' (Hemsl.) Hand.-Mazz.
Species names with uncertain taxonomic status
The status of the following species is unresolved:
References
Sophoreae
Fabaceae genera
{{Sophoreae-stub