Little-Leaf Linden cover image

Little-Leaf Linden

Tilia cordata Mill

Little-Leaf Linden

Tilia cordata Mill

“…have been used to treat anxiety by brewing tea from the leaves…” – Economic & Ethnobotanical Uses
Little-Leaf Linden quote image Full Tree, Tilia cordata (Rockstein, 2018)

Summary

Tree

Tilia cordata is a tree that can grow to 70 feet.

Bark

The bark is brown or gray and smooth in young trees but grows furrowed with age.

Leaves

Leaves are simple, alternately attached to the branches, cordate (heart-shaped) with an unequal/uneven base and are generally 1.5 – 3 inches long and wide.

Flowers

Flowers are yellow, blooming in early summer. Flowers grow in clusters of 5 to 7 and are accompanied by a long, oblong bract.

Bract

Bract (leaf-like, non-leaf structure) that is lighter in color than the true leaves and oblong in shape.

Fruits

Fruits are nutlets that are small, brown, somewhat tomentose (hairy), and round.

Taxonomy

(How things are grouped and categorized based on shared traits.)
  • Kingdom: Plantae
  • -Phylum: Streptophyta
  • –Class: Equisetopsida
  • —Subclass: Magnoliidae
  • —-Order: Malvales
  • —–Family: Malvaceae
  • ——Genus: Tilia
  • ——-Species: cordata
Foliage, Tilia cordata (Weldon, 2009)
Foliage, Tilia cordata (Weldon, 2009)

Taxonomic History:

Tilia cordata has only ever been known by that name. However, it was previously considered as part of the plant family Tiliaceae (Morton Arboretum, n.d.), but this family has since been discarded and now is considered part of the plant family Malvaceae (APG, 2016).

Fruit and Bracts, Tilia cordata (Nielsen, 2024)
Fruit and Bracts, Tilia cordata (Nielsen, 2024)

Identification Tips

The genus Tilia is easily identified by the bract found beneath each flower, which often persists beyond the flower and will give the appearance in late summer and early fall of there being two separate types of leaves on one tree, despite these structures not being true leaves. Tilia cordata may be confused with Tilia americana, which has much larger leaves (7-20 cm long) and fruits (6-8 mm long) compared to T. cordata’s 3-9 cm long leaves and 4.5-6.6 mm fruits.

Fun Fact icon

Fun Fact!

Tilia cordata is particularly susceptible to Japanese beetle (Popillia japonica) attacks. Japanese beetles can be distinguished by their shiny, metallic green carapace, and are generally half an inch long (Morton Arboretum, n.d.).

Native Range:

Distribution map of Tilia cordata. Green indicates the native range and purple indicates where it has been introduced (POWO, 2024)
Distribution map of Tilia cordata. Green indicates the native range and purple indicates where it has been introduced (POWO, 2024)
Color indicator for introduced range

Native

Color indicator for native range

Introduced

Distribution map of Tilia cordata. Green indicates the native range and purple indicates where it has been introduced (POWO, 2024)

Plant Ecology/Habitat

Tilia cordata prefers its soil well drained, yet moist. It is known for being able to withstand pollutants in its environment better than some other shade trees and is thus found in many urban settings as a cultivated specimen.

Economic or Ethnobotanical Uses

  • Wood of this tree is strong, fine textured, and resistant to splitting. As such it is often chosen for carving and for use in making pianos (Forestry Land Scotland, n.d.).
  • Tilia cordata has been used ethnobotanically for a variety of conditions throughout history. In traditional medicines, Tilia species, including T. cordata, have been used to treat anxiety by brewing tea from the leaves (Zhou et al., 2024). Alkaloids, glycosides, and flavonoids found in the leaves have some anti-bacterial and antioxidant properties (Ali et al., 2022).
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Leaves and flowers, Tilia cordata (Hedera.Baltica, 2020)
Leaves and flowers, Tilia cordata (Hedera.Baltica, 2020)

Conservation Status

According to NatureServe Explorer, due to its status as an exotic, introduced species in North America, and its pervasive nature in the continent of Eurasia, Tilia cordata is not given a conservation status rank.

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