Difference between Rowan Tree and Eryngium

ROWAN TREE vs ERYNGIUM: NOUN

Any of the genus Eryngium of umbelliferous plants resembling thistles.
A large genus of umbelliferous plants somewhat like thistles in appearance, cosmopolitan in distribution. Eryngium maritimum, or sea holly, has been highly esteemed as an aphrodisiac, the roots being formerly candied.
A genus of coarse, umbelliferous, perennial herbs, with coriaceous toothed or prickly leaves, and blue or white bracted flowers, closely sessile in dense heads.
Large genus of decorative plants with thistlelike flower heads; cosmopolitan in distribution

A european tree (Pyrus aucuparia) related to the apple, but with pinnate leaves and flat corymbs of small white flowers followed by little bright red berries. Called also roan tree, and mountain ash. The name is also applied to two American trees of similar habit (Pyrus Americana, and Pyrus sambucifolia).

Pandanus, Grevillea, Hackberries, Meadowsweet, Glabra, Lungwort, Nobilis, Ixora, Pistache, Medlar, Marsh marigold, Breadfruit tree, European mountain ash, Sorbus aucuparia, Rowan

Praecox, Acer palmatum, Lathyrus, Cinquefoil, Colocasia, Tickseed, Cimicifuga, Sinensis, Variegata, Lysimachia, Lungwort, Santolina, Eupatorium, Liatris, Genus eryngium

Blackthorn, Prunus, Pandanus, Grevillea, Hackberries, Meadowsweet, Glabra, Lungwort, Nobilis, Ixora, Pistache, Medlar, Marsh marigold, Breadfruit tree, Rowan

Syringa, Angustifolia, Acer palmatum, Lathyrus, Cinquefoil, Colocasia, Tickseed, Cimicifuga, Sinensis, Variegata, Lysimachia, Lungwort, Santolina, Eupatorium, Liatris

Claddagh, Rowan Tree of Life, Ogham, Window to the Soul and Gaelic messages jewelry will speak each day of your thoughtfulness and caring.
The Mountain Ash, or Rowan, Tree flowers with teeming masses of white flowers throughout the summer.
In the past, most homes had a Rowan tree in their garden to protect them from mischief.

The presented herbal antimicrobial agents in this review include clove, portulaca, tribulus, eryngium, cinnamon, turmeric, ginger, thyme, pennyroyal, mint, fennel, chamomile, burdock, eucalyptus, prim