Spiraeoideae
Encyclopedia
The subfamily Spiraeoideae was traditionally a subfamily of flowering plant
Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...

s within family Rosaceae. The taxonomy of this subfamily has changed several times in the last century as more detailed studies have been carried out. Spiraeoideae as defined before about 2007 is paraphyletic, leading some authors to define a broader subfamily which includes the Spiraeoideae as well as the Maleae
Maleae
The Maleae are the apple tribe in the rose family, Rosaceae. The group includes a number of plants bearing commercially important fruits, such as apples and pears, while others are cultivated as ornamentals...

 (plants such as pears and apples whose fruits are pome
Pome
In botany, a pome is a type of fruit produced by flowering plants in the subfamily Maloideae of the family Rosaceae.A pome is an accessory fruit composed of one or more carpels surrounded by accessory tissue...

s), and the Amygdaloideae (including almonds and plums, whose fruits are drupe
Drupe
In botany, a drupe is a fruit in which an outer fleshy part surrounds a shell of hardened endocarp with a seed inside. These fruits develop from a single carpel, and mostly from flowers with superior ovaries...

s). Such an expanded subfamily would be known as Amygdaloideae under the International Code of Nomenclature for algae, fungi, and plants
International Code of Nomenclature for algae, fungi, and plants
The International Code of Nomenclature for algae, fungi, and plants is the set of rules and recommendations dealing with the formal botanical names that are given to plants, fungi and a few other groups of organisms, all those "traditionally treated as plants"., Preamble, para...

.

The traditional Spiraeoideae are shrubs. Most have simple leaves, but the genera Aruncus and Sorbaria have pinnately compound leaves. Carpels are usually 2-5. Most genera traditionally placed in the Spiraeoideae produce flowers with distinct follicles that, upon seed-set, mature to form fruits that are aggregates of follicles.

A traditional classification places the following genera in the subfamily:
  • Aruncus
    Aruncus
    Aruncus is a genus of herbaceous plants in the Rosaceae, subfamily Spiraeoideae. Botanical opinion of the number of species differs, with from one to four species accepted....

  • Eriogynia
  • Euphronia
    Euphronia
    Euphronia is a genus of three species of shrubs native to northern South America and is the only genus in the family Euphroniaceae. It was previously classified in the Vochysiaceae family and elsewhere, but the APG III system of 2009 recognizes Euphroniaceae and places Euphronia in it...

  • Exochorda
    Exochorda
    Exochorda is a small genus of flowering plants in the family Rosaceae, native to China and central Asia . They are used as ornamental plants with the common name pearl bush...

  • Gillenia
    Gillenia
    Gillenia is a genus of two species of perennial herbs in the Rosaceae family. Common names for plants in this genus include: Bowman's root, Indian-physic, American ipecac. This genus is endemic to dry open woods with acidic soils in eastern North America...

  • Holodiscus
    Holodiscus
    Holodiscus is a genus of flowering plants in the family Rosaceae, native to the Americas, from southwestern British Columbia, Canada and the western United States south to Bolivia...

  • Kageneckia
    Kageneckia
    Kageneckia is a genus of flowering plant in family Rosaceae.Species include:* Kageneckia angustifolia, D. Don* Kageneckia lanceolata, Ruiz & Pav.* Kageneckia oblonga, Ruiz & Pav....

  • Lindleya
    Lindleya
    Lindleya is a genus of Mexican evergreen trees of the family Rosaceae. The sole species, L. mespiloides, grows to a height of and bears solitary white fragrant flowers in summer....

  • Neillia
  • Physocarpus
    Physocarpus
    Physocarpus, commonly called Ninebark, is a genus of about ten species of flowering plants in the family Rosaceae, native to North America and northeastern Asia ....

  • Quillaja
    Quillaja
    Quillaja is a genus of flowering plants, the only genus in the family Quillajaceae. It was once thought to be in the rose family, Rosaceae, but recent research shows it belongs in its own family. The inner bark of the soap bark tree contains saponin, which is a natural soap. Members of this...

  • Sibiraea
  • Spiraea
    Spiraea
    Spiraea , is a genus of about 80-100 species of shrubs in the family Rosaceae, subfamily Spiraeoideae. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia....

  • Spiraeanthus
    Spiraeanthus
    Spiraeanthus is a monotypic genus of shrub in the rose family containing the single species Spiraeanthus schrenkianus. Its genus name comes from and - flower. This is a shrub covered in fernlike foliage made up of fronds of small leaflets. At the ends of the erect branches of this spreading bush...

  • Sorbaria
    Sorbaria
    Sorbaria is a genus of around 9 species of flowering plants belong to family Rosaceae.-Species:*Sorbaria arborea*Sorbaria kirilowii*Sorbaria sorbifolia*Sorbaria tomentosa...

  • Stephanandra
    Stephanandra
    Stephanandra is a genus in the family Rosaceae that is sometimes included in the genus Neillia. The deciduous, thicket-forming shrubs have attractive wavy-margined leaves that resemble maple leaves and have a good orange-yellow fall color. Cutleaf Stephanandra grows to less than 2 feet tall but...

  • Vauquelinia
    Vauquelinia
    Vauquelinia, commonly known as the rosewoods, is a genus of the rose family Rosaceae. It consists of two species of shrubs found in the southwestern United States and northwestern Mexico.V...


Examples

  • Aruncus dioicus
    Aruncus dioicus
    Aruncus dioicus is a plant in the rose family, Rosaceae. It is a herbaceous plant with alternate, pinnately compound leaves, on thin, stiff stems. The flowers are white, borne in summer. This plant can be found throughout Europe, Asia, and eastern and western North America...

  • False Spirea, Sorbaria sorbifolia
  • Japanese Spiraea, Spiraea japonica
    Spiraea japonica
    Spiraea japonica is a plant in the family Rosaceae. Synonyms for the species name are Spiraea bumalda Burv. and Spiraea japonica var. alpina Maxim.-Description:...

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