1. Annual wiry-stemmed North American weed with minute scalelike leaves and small yellow flowers
   - orange grass, pineweed, pine-weed, Hypericum gentianoides

Type of: St John's wort

• xerophyte
• xerophytic
• xerophytic plant
• xeroradiography
• xerosis
• xerostomia
• xerotes
• xerox
• xerox copy
• Xerox machine
• Xerxes
• Xerxes I
• Xerxes II
• Xerxes the Great
• Xestobium rufovillosum
• Xhosa
• xi
• Xian
• xii
• xiii
• Ximenesia encelioides
• Xinjiang
• Xinjiang Uighur Autonomous Region
• Xiphias
• Xiphias gladius