Thymus pulegioides

Thymus pulegioides, common names broad-leaved thyme or lemon thyme,[1] is a species of flowering plant in the family Lamiaceae, native to Europe. Growing to 5–25 cm (2–10 in) tall by 25 cm (10 in) wide, it is a small spreading subshrub with strongly aromatic leaves, and lilac pink flowers in early summer.[2] The specific epithet pulegioides highlights its similarity to another species within Lamiaceae, Mentha pulegium (pennyroyal).[3]

Thymus pulegioides
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Thymus
Species:
T. pulegioides
Binomial name
Thymus pulegioides

Description

Broad-leaved thyme is a creeping dwarf evergreen shrub with woody stems and a taproot. It is rather similar to wild thyme (Thymus serpyllum) but it is larger, the leaves are wider and all the stems form flowering shoots. The reddish stems are squarish in cross-section and have hairs on the edges. The leaves are in opposite pairs with short stalks, and the linear ovate blades have tapering bases and untoothed margins. The plant flowers in July and August. The usually pink or mauve flowers form rounded umbels and each has a tube-like calyx and an irregular straight-tubed, hairy corolla. The upper petal is notched and the lower one is larger than the two lateral petals and has three flattened lobes which form a lip. Each flower has four projecting stamens and two fused carpels. The fruit is a dry, four-chambered schizocarp.[4]

Distribution and habitat

Broad-leaved thyme is native to temperate parts of Europe. It grows in rough places on light, sparse soils. These include hills, rocky outcrops, gravels, sandy places, wasteground and roadsides.[4]

Cultivation

Suitable for cultivation in any well-drained alkaline or neutral soil in full sun, this ornamental thyme is useful as groundcover, but can also be used like thyme in cooking. Numerous cultivars have been selected, of which 'Aureus',[5] with lemon-scented gold leaves, and 'Bertram Anderson'[6] have both gained the Royal Horticultural Society's Award of Garden Merit.[7]

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References
  1. "Plants for a future - Thymus pulegioides". Retrieved 6 June 2013.
  2. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  3. Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  4. "Broad-leaved Thyme: Thymus pulegioides". NatureGate. Retrieved 2013-12-13.
  5. "Thymus pulegioides 'Aureus'". RHS. Retrieved 16 February 2020.
  6. "Thymus pulegioides 'Bertram Anderson'". RHS. Retrieved 16 February 2020.
  7. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 102. Retrieved 23 December 2018.

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